Solve for x
x=\frac{y-14}{3}
Solve for y
y=3x+14
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y+7=3x+21
Use the distributive property to multiply 3 by x+7.
3x+21=y+7
Swap sides so that all variable terms are on the left hand side.
3x=y+7-21
Subtract 21 from both sides.
3x=y-14
Subtract 21 from 7 to get -14.
\frac{3x}{3}=\frac{y-14}{3}
Divide both sides by 3.
x=\frac{y-14}{3}
Dividing by 3 undoes the multiplication by 3.
y+7=3x+21
Use the distributive property to multiply 3 by x+7.
y=3x+21-7
Subtract 7 from both sides.
y=3x+14
Subtract 7 from 21 to get 14.
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