Question

Г)2u-3(7-2u)=3
Д)12-у=5(4-2у)+10

Answer 1

г) 2u-21+6u-3=0
8u=24
u=24/8
u=3

д) 12-y=20-10y+10
12-20-10=-10y+y
-18=-9y
9y=18
y=18/9
y=2