Question

Решите уравнение:

 

 $-3x/7 + 3 (x - 2/7)+11 = -7x/2 + 3 (x+1)$

Answer 1

$-frac{3x}{7}+3(x-frac{2}{7})+11=-frac{7x}{2}+3(x+1)$

$-frac{3x}{7}+3x-frac{6}{7}+11=-frac{7x}{2}+3x+3$

$-frac{3x}{7}-frac{6}{7}+11=-frac{7x}{2}+3$

$-frac{3x}{7}+frac{7x}{2}=3-11+frac{6}{7}$

$frac{49x-6x}{14}=-8+frac{6}{7}$

$frac{43x}{14}=-7frac{1}{7}$

$43x=-frac{50}{7}*14$

$43x=-50*2$

$x=-100:43$

$x=-2frac{14}{43}$

 

 

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