Solve for x
x=-\frac{7}{9}\approx -0.777777778
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5x-7=-13x-21
Divide 15 by 3 to get 5.
5x-7+13x=-21
Add 13x to both sides.
18x-7=-21
Combine 5x and 13x to get 18x.
18x=-21+7
Add 7 to both sides.
18x=-14
Add -21 and 7 to get -14.
x=\frac{-14}{18}
Divide both sides by 18.
x=-\frac{7}{9}
Reduce the fraction \frac{-14}{18} to lowest terms by extracting and canceling out 2.
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