Question

5у+2(у-4)=42-3у ответ плизз

Answer 1

5у+2(у-4)=42-3у
5у+2у-8=42-3у
7у+3у=42+8
10у=50
у=50/10
у=5

Answer 2

5у + 2(у-4) = 42-3у
5у+ 2у- 8+3у=42
10у= 42+8
10у=50
у=50:10
у=5
27=27