Solve for x
x=-8
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6x+9=15x+81
Combine 18x and -3x to get 15x.
6x+9-15x=81
Subtract 15x from both sides.
-9x+9=81
Combine 6x and -15x to get -9x.
-9x=81-9
Subtract 9 from both sides.
-9x=72
Subtract 9 from 81 to get 72.
x=\frac{72}{-9}
Divide both sides by -9.
x=-8
Divide 72 by -9 to get -8.
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