Solve for u
u=-6
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5u+10-7u=22
Use the distributive property to multiply 5 by u+2.
-2u+10=22
Combine 5u and -7u to get -2u.
-2u=22-10
Subtract 10 from both sides.
-2u=12
Subtract 10 from 22 to get 12.
u=\frac{12}{-2}
Divide both sides by -2.
u=-6
Divide 12 by -2 to get -6.
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