Question

решите уравнения-3*(1-3y)-12=12

Answer 1

-3+9у-12=12
9у=12+12+3
9у=27
у=3

Answer 2

-3 * (1 - 3y) -12 = 12
-3 + 9у - 12 = 12
9у = 12+3+12
9у = 27
у = 27: 9
у = 3