1) 4х + 3 = 7 – 2х;
4x +2x=7-3
6x=4
2)11 + 2х = 55 + 3х;
3x - 2x= 55 - 11
-x = 44
x= - 44
3)- 15 – 3х = - 7х + 45
-3x + 7x = 45 + 15
4x = 60
x = 15
4)- 3х – 17 = 8х – 105
-3x - 8x = - 105 +17
-11x = -88
x= 8
только 4 успела сделать
1) 4х + 3 = 7 – 2х;
4x +2x=7-3
6x=4
2)11 + 2х = 55 + 3х;
3x - 2x= 55 - 11
-x = 44
x= - 44
3)- 15 – 3х = - 7х + 45
-3x + 7x = 45 + 15
4x = 60
x = 15
4)- 3х – 17 = 8х – 105
-3x - 8x = - 105 +17
-11x = -88
x= 8
только 4 успела сделать