Question

Решите уравнения: а) 2-3(2х+2)=5-4х б)8-5(2х-3)=13-6х в)1-2(5-2х)=-х-3 г)1-7(4+2х)=-9-4х д)-2(5-3х)=7х+3 е)8-5(2х-3)=13-6х

Answer 1

Держи 4)))))))))))))))))))))))))))))))))))))))))))

Answer 2

а) 2 - 6x - 6 = 5 - 4x -4x - 4 = 5 - 4x -4 = 5 Нет решения, так как -4 не равно 5.

б) 8 - 10x + 15 = 13 - 6x -10x + 23 = 13 - 6x -10x + 6x = 13 - 23 -4x = -10 x = 10 / 4 x = -5/2

в) 1 - 10 + 4x = -x - 3 -9 + 4x = -x - 3 4x + x = -3 + 9 5x = 6 x = 6 / 5 x = 1.2

г) 1 - 28 - 14x = -9 - 4x -27 - 14x = -9 - 4x -14x + 4x = -9 + 27 -10x = 18 x = 18 / -10 x = -1.8

д) -10 + 6x = 7x + 3 -10 - 3 = 7x - 6x -13 = x

е) 8 - 10x + 15 = 13 - 6x -10x + 23 = 13 - 6x -10x + 6x = 13 - 23 -4x = -10 x = 10 / 4 x = -5/2