Solve for u
u = \frac{167}{20} = 8\frac{7}{20} = 8.35
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20u-15=4\left(7\times 5+3\right)
Multiply both sides of the equation by 20, the least common multiple of 4,5.
20u-15=4\left(35+3\right)
Multiply 7 and 5 to get 35.
20u-15=4\times 38
Add 35 and 3 to get 38.
20u-15=152
Multiply 4 and 38 to get 152.
20u=152+15
Add 15 to both sides.
20u=167
Add 152 and 15 to get 167.
u=\frac{167}{20}
Divide both sides by 20.
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