Solve for x
x=-7
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x-3-3x-\left(-4\right)=15
To find the opposite of 3x-4, find the opposite of each term.
x-3-3x+4=15
The opposite of -4 is 4.
-2x-3+4=15
Combine x and -3x to get -2x.
-2x+1=15
Add -3 and 4 to get 1.
-2x=15-1
Subtract 1 from both sides.
-2x=14
Subtract 1 from 15 to get 14.
x=\frac{14}{-2}
Divide both sides by -2.
x=-7
Divide 14 by -2 to get -7.
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