7х-3 (5х-4)+3х-12=помогите плиззззз

Question

7х-3 (5х-4)+3х-12=
помогите плиззззз

Answer 1

7х-3(5х-4)+3х-12
7х-15х+12+3х-12
7х-15х+3х= 12-12
-11х= 0

Answer 2

7x-3(5x-4)+3x-12 = 0
7x-15x+12+3x-12=0
-5x=0
x=0