Question

решите уравнение 2(x-3)-7(x+1,5)=3,5

Answer 1

2x-6-7x-10,5=3,5
2x-7x=3,5+6+10,5
-5x=20
X=20/-4=-5

Answer 2

X=20/-5=-4

Answer 3

2 (х-3)-7(х+1,5)=3, 5
2х-6-7х-10,5-3,5=0
-5х-20=0
-5х=20
5х=-20
х=-4