Solve for x
x = \frac{13}{4} = 3\frac{1}{4} = 3.25
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-x+13-3x=0
Subtract 3x from both sides.
-x-3x=-13
Subtract 13 from both sides. Anything subtracted from zero gives its negation.
-4x=-13
Combine -x and -3x to get -4x.
x=\frac{-13}{-4}
Divide both sides by -4.
x=\frac{13}{4}
Fraction \frac{-13}{-4} can be simplified to \frac{13}{4} by removing the negative sign from both the numerator and the denominator.
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