Hi there!
Solve for x
[tex]x + 5y = 15[/tex]
Subtract 5y from both sides.
[tex]x = 15 - 5y[/tex]
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Solve for y
[tex]x + 5y = 15[/tex]
Subtract x from both sides.
[tex]5y = 15 - x[/tex]
Divide both sides by 5.
[tex]y = 3 - \frac{1}{5} x[/tex]