Get all the y terms on one side.
I will do B for you and let you do A.
First, get rid of the parenthesis.
15x-3x^2=x-y
Move the x and multiply by -1.
3x^2-14x=y
I hope this helps you to do the first problem. Thanks for asking.
For each equarion, write the equivalent equation that expresses y in terms of x
(Problem A)
3x+5x-y=5y
y=
(Problem B)
3x(5-x)= x-y
2 answers
8x^2=6y