Solve for x
x=15
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4x-36=x+9
Use the distributive property to multiply 4 by x-9.
4x-36-x=9
Subtract x from both sides.
3x-36=9
Combine 4x and -x to get 3x.
3x=9+36
Add 36 to both sides.
3x=45
Add 9 and 36 to get 45.
x=\frac{45}{3}
Divide both sides by 3.
x=15
Divide 45 by 3 to get 15.
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