Question

rezolvati ecuatiile:3x+2=2x-7 11-4x=5x-7 -2+x=-3+10 -7x+1=-8+1

Answer 1

3x+2=2x-7
3x-2x=-7-2
x=-9 

11-4x=5x-7
-4x-5x=-11-7
-9x=-18
-x=-18/9
-x=-2(-1)
x=2

-2+x=-3+10
x=7+2
x=9

-7x+1=-8+1
-7x=-8+1-1
-x=-8/7 (-1)
x=8/7

Answer 2

1)x=-5
2)x=3
3)x=5
4)-7x=-7=>x=0
sper ca te-am ajutat și sper ca am scris bine