Solve for x
x=4
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x=4x-12-7\left(x-4\right)
Use the distributive property to multiply 4 by x-3.
x=4x-12-7x+28
Use the distributive property to multiply -7 by x-4.
x=-3x-12+28
Combine 4x and -7x to get -3x.
x=-3x+16
Add -12 and 28 to get 16.
x+3x=16
Add 3x to both sides.
4x=16
Combine x and 3x to get 4x.
x=\frac{16}{4}
Divide both sides by 4.
x=4
Divide 16 by 4 to get 4.
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