Solve for x
x=\frac{3y}{4}-\frac{1}{60}
Solve for y
y=\frac{4x}{3}+\frac{1}{45}
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12x+0.2=9y
Swap sides so that all variable terms are on the left hand side.
12x=9y-0.2
Subtract 0.2 from both sides.
\frac{12x}{12}=\frac{9y-0.2}{12}
Divide both sides by 12.
x=\frac{9y-0.2}{12}
Dividing by 12 undoes the multiplication by 12.
x=\frac{3y}{4}-\frac{1}{60}
Divide 9y-0.2 by 12.
9y=12x+0.2
The equation is in standard form.
\frac{9y}{9}=\frac{12x+0.2}{9}
Divide both sides by 9.
y=\frac{12x+0.2}{9}
Dividing by 9 undoes the multiplication by 9.
y=\frac{4x}{3}+\frac{1}{45}
Divide 12x+0.2 by 9.
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