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. −35y+7=−8⇒−35y+0=−15
Now you have −35y=−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 −35 to 1.
−35y⋅(−53)=−151⋅(−53)
Doing this will give you y=753 which reduces down to y=25.
