Solve for x
x=2
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x+3x+12=20
Use the distributive property to multiply 3 by x+4.
4x+12=20
Combine x and 3x to get 4x.
4x=20-12
Subtract 12 from both sides.
4x=8
Subtract 12 from 20 to get 8.
x=\frac{8}{4}
Divide both sides by 4.
x=2
Divide 8 by 4 to get 2.
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