Question

решите уравнение 5x+5*3+7=3x+3-12
3*(2y-1)+6*(3y-4)=83+5*(y-3)
(c-3)*12=20-4*(c+2)

Answer 1

5x+5*3+7=3x+3-12
5x+22=3x+11
2x=-10
x=-5

3*(2y-1)+6*(3y-4)=83+5*(y-3)
6y-3+18y-24=83+5y-15
19y=95
y=5

(c-3)*12=20-4*(c+2)
12c-36=20-4c-8
16c=48
c=3