Solve for x
x = \frac{9}{8} = 1\frac{1}{8} = 1.125
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4x+9-12x=0
Subtract 12x from both sides.
-8x+9=0
Combine 4x and -12x to get -8x.
-8x=-9
Subtract 9 from both sides. Anything subtracted from zero gives its negation.
x=\frac{-9}{-8}
Divide both sides by -8.
x=\frac{9}{8}
Fraction \frac{-9}{-8} can be simplified to \frac{9}{8} by removing the negative sign from both the numerator and the denominator.
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