You can put this solution on YOUR website! to solve for y you want to isolate y on one side of the equal sign and all else on the other. so you go from x + 5y equals 20, to:
x + 5y (equal sign) 20 - x.
to isolate the y you must move over the x.
you end up with 5y (equals) -20-x. Now divede the 5 away for the y.
you get: y (equals) -20-x / 5 or -20-x over 5.
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