Question

помогите
(2+3х)-(4х-7)=10​

Answer 1

2+3х-4х-7=10
3х-4х=10-2+7
-х=15

Answer 2

(2+3х)-(4х-7)=10

2+3x-4x+7=10

9-x=10

-x=10-9

-x=1

x=-1