Get premium membership and access questions with answers, video lessons as well as revision papers.
3x x 22x-3 = 18
3x x 22x-3 = 9 x 2
3x x 22x-3 = 32 x 21
either 32 = 3x
x = 2
johnmulu answered the question on June 12, 2017 at 13:33
- Solve for x in 9x + 32x - 1 = 53 (Solved)
Solve for x in 9x + 32x - 1 = 53
Date posted: June 12, 2017. Answers (1)
- Solve for x in (Solved)
Solve for x in 9x + 32x+1 = 36
Date posted: June 12, 2017. Answers (1)
- Solve for m if ($\frac{1}{27})^m$ x (81)$^{-1}$ = 243(Solved)
Solve for m if ($\frac{1}{27})^m$ x (81)$^{-1}$ = 243
Date posted: June 12, 2017. Answers (1)
- Solve for x in ($4^3)^x$ = $\frac{1}{64}$(Solved)
Solve for x in ($4^3)^x$ = $\frac{1}{64}$
Date posted: June 12, 2017. Answers (1)
- Evaluate ($\frac{1}{2})^x$ x ($\frac{1}{8})^{1-X} = 32$(Solved)
Evaluate ($\frac{1}{2})^x$ x ($\frac{1}{8})^{1-X} = 32$
Date posted: June 12, 2017. Answers (1)
- Evaluate ($\frac{8}{27})^{\frac{2}{3}}$ x $16^{\frac{1}{2}}$ x $81^{\frac{1}{4}}$(Solved)
Evaluate ($\frac{8}{27})^{\frac{2}{3}}$ x $16^{\frac{1}{2}}$ x $81^{\frac{1}{4}}$
Date posted: June 12, 2017. Answers (1)
- Simplify (Solved)
Simplify $\sqrt{3^x \times 4^{2x }\div3^{-x}}$
Date posted: June 12, 2017. Answers (1)
- Solve for x in (Solved)
Solve for x in $\frac{81 \times 27^x}{9^x}$ = 729
Date posted: June 12, 2017. Answers (1)
- Evaluate $32^{x-3}$ x $8^{x+4}$ = $\frac{64}{2^2}$(Solved)
Evaluate $32^{x-3}$ x $8^{x+4}$ = $\frac{64}{2^x}$
Date posted: June 12, 2017. Answers (1)
- Solve for x(Solved)
Solve for x in $9^{x-\frac{1}{2}}$ = $27^{\frac{3}{4}x -5}$
Date posted: June 12, 2017. Answers (1)
- Evaluate 45x x 2(3x)2 = 256(Solved)
Evaluate 45x x 2(3x)2 = 256
Date posted: June 12, 2017. Answers (1)
- Solve for x in 4x+1 = 32. (Solved)
Solve for x in 4x+1 = 32.
Date posted: June 12, 2017. Answers (1)
- On a map with scale 1: 50 000 a square piece of land of actual area 0.64 hectares has a length of x cm on the map. Find x. (Solved)
On a map with scale 1: 50 000 a square piece of land of actual area 0.64 hectares has a length of x cm on the map. Find x.
Date posted: June 12, 2017. Answers (1)
- A map has a scale of 1: 40 000
(a) Calculate the distance in metres between two points on the ground if the distance shown on the map is the map 3.25 cm(Solved)
A map has a scale of 1: 40 000
(a) Calculate the distance in metres between two points on the ground if the distance shown on the map is the map 3.25 cm
(b) Calculate the area on the map of woodland which occupies 36 metres by 36 metres on the ground.
Date posted: June 12, 2017. Answers (1)
- On a map drawn to scale of 1: 350 000 the approximate area of an island is 7 cm2. Find correct to 3 s.f the area of the island in square kilometres. (Solved)
On a map drawn to scale of 1: 350 000 the approximate area of an island is 7cm2. Find correct to 3 s.f the area of the island in square kilometres.
Date posted: June 12, 2017. Answers (1)
- The scale of a map is 1:20, 000. A tunnel measures 0.48 cm on the map. Calculate the actual length in metres of the tunnel. (Solved)
The scale of a map is 1:20, 000. A tunnel measures 0.48 cm on the map. Calculate the actual length in metres of the tunnel.
Date posted: June 12, 2017. Answers (1)
- The exterior angle of a regular polygon is two seventh of the interior angle. Find the number of sides of this polygon.(Solved)
The exterior angle of a regular polygon is two seventh of the interior angle. Find the number of sides of this polygon.
Date posted: June 12, 2017. Answers (1)
- A regular polygon is such that its interior angle exceeds three times the exterior angle by 20o. Find (Solved)
A regular polygon is such that its interior angle exceeds three times the exterior angle by 20o. Find the number of sides the polygon has.
Date posted: June 12, 2017. Answers (1)
- The ratio of the interior angle to the exterior angle of a regular polygon is 23:2. Find the number of sides the polygon has. (Solved)
The ratio of the interior angle to the exterior angle of a regular polygon is 23:2. Find the number of sides the polygon has.
Date posted: June 12, 2017. Answers (1)
- The interior angle of a regular polygon exceeds the exterior by 144o. Find the
(Solved)
The interior angle of a regular polygon exceeds the exterior by 144o. Find the
(a) number of sides
(b) sum of interior angles
Date posted: June 12, 2017. Answers (1)