Question

5x+11-(6+2x)=(3-x)-7

Answer 1

5x+11-8x=3-x-7
-3x+11=3-x-7
-3x+11=-4-x
-3x+x=-4-11
-2x=-15
x=15:2

Answer 2

5x+11-6-2x=3-x-7
5x-2x+x=3-7-11+6
4x=-9
x=-9:4
x=-2,25
Ответ:-2,25