How do you solve - 3/5y + 7 = - 8?

1 Answer
Nov 5, 2015

y = 75/3 or y = 25, simplified.

Explanation:

In this equation, your end goal is to get y by itself.

Your first step is to get y isolated on one side. To do this, you would use the "subtraction property of equality". You will subtract 7 from both sides to cancel out the left side 7 and leave y by itself. -3/5y + 7 = -8 => -3/5y + 0 = -15

Now you have -3/5y = -15 and you want to get y completely by itself. To do this you would use the "multiplication property of equality", and multiply by the "reciprocal" to make the -3/5 to 1.
-3/5y*(-5/3)=-15/1*(-5/3)

Doing this will give you y = 75/3 which reduces down to y=25.