Question

Решите уравнение
18х-(6х-5)=4+7х

Answer 1

18х - ( 6х - 5 ) = 4 + 7х
18х - 6х + 5 = 4 + 7х
12х + 5 = 4 + 7х
12х - 7х = 4 - 5
5х = - 1
Х = - 1 : 5
Х = - 0,2

Answer 2

18x-6x+5=4+7x
18x-6x-7x=4-5
5x=-1
x=15