Question

What is the answer to `31+3(7y-2.7)=106`?

Answer 1

`y=277/70=3.9dot(5)7142dot8~~3.96`

Explanation:

We need to get `y` on its own.

First we take away `31` from both sides:
`31-31+3(7y-2.7)=106-31`
`3(7y-2.7)=75`

Now we divide both sides by `3`:
`(3(7y-2.7))/3=75/3`
`7y-2.7=25`

We add `2.7` to both sides:# #7y-2.7+2.7=25+2.7# #7y=27.7#

Finally we divide both sides by `7`:
`(7y)/7=27.7/7`
`y=277/70=3.9dot(5)7142dot8~~3.96`