Question

6×-11=5 ;3×+9=7×-2 ;5×+3=11-4×-6 ;2 (×-3)=3-5× ;3×-9+4×-2=15-6×-3; vă rog mulțumesc.

Answer 1

6x-11=5
6x=16
x=16/6=8/3

3x+9=7x-2
3x-7x=-2-9
-4x=-11
x=11/4

5x+3=11-4x-6
5x+3=5-4x
5x-4x=5-3
x=2

2(x-3)=3-5x
2x-6=3-5x
2x+5x=3+6
7x=9
x=9/7

3x-9+4x-2=15-6x-3
7x-11=-6x+12
7x+6x=12+11
13x=23
x=23/13