Solve for A
A=540-15x
Solve for x
x=-\frac{A}{15}+36
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A=540-18x+3x
Use the distributive property to multiply 30-x by 18.
A=540-15x
Combine -18x and 3x to get -15x.
A=540-18x+3x
Use the distributive property to multiply 30-x by 18.
A=540-15x
Combine -18x and 3x to get -15x.
540-15x=A
Swap sides so that all variable terms are on the left hand side.
-15x=A-540
Subtract 540 from both sides.
\frac{-15x}{-15}=\frac{A-540}{-15}
Divide both sides by -15.
x=\frac{A-540}{-15}
Dividing by -15 undoes the multiplication by -15.
x=-\frac{A}{15}+36
Divide A-540 by -15.
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