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13x+13=15x+13-14
Subtract 14 from 27 to get 13.
13x+13=15x-1
Subtract 14 from 13 to get -1.
13x+13-15x=-1
Subtract 15x from both sides.
-2x+13=-1
Combine 13x and -15x to get -2x.
-2x=-1-13
Subtract 13 from both sides.
-2x=-14
Subtract 13 from -1 to get -14.
x=\frac{-14}{-2}
Divide both sides by -2.
x=7
Divide -14 by -2 to get 7.