-8x+28+32x=4x+7
-8x+32x-4x=
-30x=-21
x=30/21
x=1.9/21
-8x+4(7+8x)=4x+7
- 8х + 28 + 32х - 4х - 7 = 0
20х + 21 = 0
20х = - 21
х = - 1, 05
-8x+28+32x=4x+7
-8x+32x-4x=
-30x=-21
x=30/21
x=1.9/21
-8x+4(7+8x)=4x+7
- 8х + 28 + 32х - 4х - 7 = 0
20х + 21 = 0
20х = - 21
х = - 1, 05