How do you solve - 3/5y + 7 = - 835y+7=8?

1 Answer
Nov 5, 2015

y = 75/3y=753 or y = 25y=25, simplified.

Explanation:

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

Your first step is to get yy isolated on one side. To do this, you would use the "subtraction property of equality"subtraction property of equality. You will subtract 77 from both sides to cancel out the left side 77 and leave yy by itself. -3/5y + 7 = -8 => -3/5y + 0 = -1535y+7=835y+0=15

Now you have -3/5y = -1535y=15 and you want to get y completely by itself. To do this you would use the "multiplication property of equality"multiplication property of equality, and multiply by the "reciprocal"reciprocal to make the -3/535 to 1.
-3/5y*(-5/3)=-15/1*(-5/3)35y(53)=151(53)

Doing this will give you y = 75/3y=753 which reduces down to y=25y=25.