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Equate corresponding sides
3 - 2x = 7x - 4y
9x - 4y = 3 ...................(i)
2y + x = 4 - x
2x + 2y = 4 ................(ii)
Multiply eqn. (ii) by 2.
9x - 4y = 3
4x + 4y = 8 - (add eqns)
13x = 11;
x = $\frac{11}{13}$
Substitute x = $\frac{11}{13}$ in
9x + 4y = 3 to get
$\frac{99}{13}$ + 4y = 3;
4y = 3 - $\frac{99}{33}$ = -$\frac{60}{13}$
y = - $\frac{15}{13}$
johnmulu answered the question on June 8, 2017 at 12:08
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