Solve for x
x=3
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12-x-\left(-3\right)+4x=24
To find the opposite of x-3, find the opposite of each term.
12-x+3+4x=24
The opposite of -3 is 3.
15-x+4x=24
Add 12 and 3 to get 15.
15+3x=24
Combine -x and 4x to get 3x.
3x=24-15
Subtract 15 from both sides.
3x=9
Subtract 15 from 24 to get 9.
x=\frac{9}{3}
Divide both sides by 3.
x=3
Divide 9 by 3 to get 3.
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