Решите уравнение 5(x+1)-7(2x+1)=-20

Question

Решите уравнение 5(x+1)-7(2x+1)=-20

Answer 1

5х+5-14х-7=-20
-9х-2=-20
-9х=-18
х=2

Answer 2

5х+5-14х-7=-20
-9х=-20-5+7
-9х=-18
х=-18/-9
х=2