Question

Cat este:
1)
a) -6x+11=-25
b) 5(x+2)-2(2x+3)=34-5x

Answer 1

Răspuns:

a. x= 6

-6x+11=-25

-6x=-25-11

-6x=-36

x=-36/-6= 6

b. 5x+10-4x+6=34-5x

5x-4x+5x=-10-6+34

6x= -16+ 34

6x=18

x=18/6= 3

Answer 2

$\it a)\ -6x+11=-25 \Rightarrow 11+25=6x \Rightarrow 36=6x \Rightarrow 6x=36|_{:6} \Rightarrow x=6\\ \\ b)\ 5(x+2)-2(2x+3)=34-5x \Rightarrow 5x+10-4x-6=34-5x \Rightarrow \\ \\ \Rightarrow 5x-4x+5x=34+6-10 \Rightarrow 6x=30|_{:6} \Rightarrow x=5$