How do you solve 7+ 4y = 39?

3 Answers
Apr 23, 2018

y=8

Explanation:

you'll want to get y by itself one one side of the equation, so subtract a 7 from both sides

7+4y=39
subtract 7 from both sides

=4y=32

divide both sides by 4 to isolate y

=y=8

Apr 23, 2018

y=8

Explanation:

We have to reverse the mapping to find out the answer

Minus 7 on both sides

7-color(red)(7)+4y=39-color(red)7

4y=32

Now divide both sides by 4

4/color(red)4y=32/color(red)4

y=8

Apr 23, 2018

y=8

Explanation:

In order to find y, we must first isolate the variable. Therefore, we subtract 7 from both sides.

7-7=0 and 39-7=32

Now, we're left with

4y=32

We still need to isolate the variable. Thus dividing by 4 on both sides;

(4y)/4 = y and 32/4= 8

So

y=8