Solve for x 5^(x+1) + 6(5^x) – 70 = 205

Solve for x
5^(x+1) + 6(5^x) – 70 = 205

Answers

5^x.5 + 6.5^x = 275
Let 5^x = y
5y + 6y = 275
11y = 275
y = 25
5^x = 5²
x = 2

Kavungya answered the question on October 9, 2019 at 07:21

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