Solve for u
u=18
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5u=6\left(7\times 2+1\right)
Multiply both sides of the equation by 12, the least common multiple of 12,2.
5u=6\left(14+1\right)
Multiply 7 and 2 to get 14.
5u=6\times 15
Add 14 and 1 to get 15.
5u=90
Multiply 6 and 15 to get 90.
u=\frac{90}{5}
Divide both sides by 5.
u=18
Divide 90 by 5 to get 18.
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