15x-7(2x+5)=4(x+1) решите уравнение
15x - 7(2x + 5) = 4(x + 1)
15x - 14x - 35 = 4x + 4
x - 4x = 4 + 35
- 3x = 39
x = 39 : (- 3)
x = - 13