Solve for u
u=54
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u-5=49
Square both sides of the equation.
u-5-\left(-5\right)=49-\left(-5\right)
Add 5 to both sides of the equation.
u=49-\left(-5\right)
Subtracting -5 from itself leaves 0.
u=54
Subtract -5 from 49.
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