Question

2а+4=а+12
11у-8=3у+16

Answer 1

2a+4=a+12
2a-a=12-4
a=8

11y-8=3y+16
11y-3y=16+8
8y=24
y=3

Answer 2

1)2а+4=а+12
2а-а=12-4
а=8
2)11у-8=3у+16
11у-3у=16+8
8у=24
у=24:8
у=3