2-(5х-9)+2=15+7(х-2)

Question

2-(5х-9)+2=15+7(х-2)

Answer 1

2-5x+9+2=15+7x-14; 13-5x=1+7x; -5x-7x=1-13; -12x= -12; x=(-12)/(-12)=1. Ответ: x=1.

Answer 2

2-(5x-9)+2=15+7(x-2)
2-5x+9+2=15+7x-14
13-5x=1+7x
-5x-7x=1-13
-12x=-12
x=1