Question

2,4(x-5)-(x+4)=-6,6x-20

Answer 1

2,4х-12-х-4=-6,6х-20
2,4х+6,6х-х=-20+12+4
8х=-4
х=-4 : 8
х=- 0,5
ответ : -0,5

Answer 2

2,4x-12-x+4=-6.6x-20
2,4-x+6.6x=-20+12-4
8x=- 12
x=-12/8=-3/2