Question

9х-2 (3х+5)-6х+12=
помогите плииииизззз

Answer 1

9x-2(3x+5)-6x+12=0
9x-6x-10-6x+12=0
-3x+2=0
x=2/3

Answer 2

9х-2(3х+5)-6х+12=9х-6х-10-6х+12=-3х+2

Answer 3

2+7(3-4х)+20х=2+21-28х+20х=-8х+23