Question

решите уравнения
1) (5х-3)+(7х-4)=8-(15-11 х)
2) (4х+3)-(10х+11)=7+(13-4х)

Answer 1

1)(5x-3)+(7x-4)=8-(15-11x)
5x-3+7x-4=8-15+11x
5x+7x-11x=8-15+3+4
x=0
2)(4x+3)-(10x+11)=7+(13-4x)
4x+3-10x-11=7+13-4x
4x-10x+4x=7+13-3+11
-2x=28
x=28:(-2)
x=-14