3x+5y=15 solve for y

QUESTION POSTED AT 18/04/2020 - 07:52 PM

Answered by admin AT 18/04/2020 - 07:52 PM

You can't solve one equation with 2 variables. You always need as many equations as there are variables. At most you can rewrite it in terms of y:

5y = 15 - 3x

5 = 3 - 3/5x
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