Question

решите: 9х-2(-5+7х)=-8х-5

Answer 1

9х-2(-5+7х)= -8х-5
9х+10-14х+8х= -5
3х= -5-10
3х= -15
х= -5

Answer 2

9х+10-14х=-8х-5
-5х+10=-8х-5
3х=-15
х=-5