I'm stuck with a Math question? Algebra 2?

Question

5 (y+4) = 4 (x+5)

My work:

5y + 20 = 4x + 20

What do I do now? If I subtract the twenty from one side, do I subtract it from the other? But what if that leaves me to 5y = 4x? Please, help me. When explaining it to me, be to the point and be clear. Thank you.

Answer 1

yea, you move the twenty to the other side and it's 20 minus 20. It leaves you with 5y=4x and then x= 5/4y  OR y=4/5x

Answer 2

Hi...u r correct. The answer is 5y = 4x. You can also write it as y = (4/5) * x. For any value or x you can have a value for y which is just (4/5) * x.

For x = 1, y = (4/5) * 1 = 4/5,

      x = 2, y = (4/5) * 2 = 8/5 and so on.

Answer 3

Yes, subtract 20 from both sides.

5y=4x

Solve for x; (5y)/4=x

Solve for y; (4x)/5=y