2(4x+5)-3(x+6)=9x+88x + 10 - 3x - 18 = 9x + 85x - 8 = 9x + 85x - 9x = 8 + 8-4x = 16x = 16 / -4x = -4
Ответ: x = -4.
2(4x+5)-3(x+6)=9x+8
8x + 10 - 3x - 18 = 9x + 8
5x - 8 = 9x + 8
5x - 9x = 8 + 8
-4x = 16
x = 16 / -4
x = -4
Ответ: x = -4.