Solve for x
x=-\frac{2}{11}\approx -0.181818182
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21-7x-15x=25
Subtract 15x from both sides.
21-22x=25
Combine -7x and -15x to get -22x.
-22x=25-21
Subtract 21 from both sides.
-22x=4
Subtract 21 from 25 to get 4.
x=\frac{4}{-22}
Divide both sides by -22.
x=-\frac{2}{11}
Reduce the fraction \frac{4}{-22} to lowest terms by extracting and canceling out 2.
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