Solve for x
x = \frac{7}{3} = 2\frac{1}{3} \approx 2.333333333
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9x-0x=21
Multiply 0 and 6 to get 0.
9x-0=21
Anything times zero gives zero.
9x=21+0
Add 0 to both sides.
9x=21
Add 21 and 0 to get 21.
x=\frac{21}{9}
Divide both sides by 9.
x=\frac{7}{3}
Reduce the fraction \frac{21}{9} to lowest terms by extracting and canceling out 3.
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