u-7.5=-3

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Solution for u-7.5=-3 equation: 


Simplifying
u + -7.5 = -3

Reorder the terms:
-7.5 + u = -3

Solving
-7.5 + u = -3

Solving for variable 'u'.

Move all terms containing u to the left, all other terms to the right.

Add '7.5' to each side of the equation.
-7.5 + 7.5 + u = -3 + 7.5

Combine like terms: -7.5 + 7.5 = 0.0
0.0 + u = -3 + 7.5
u = -3 + 7.5

Combine like terms: -3 + 7.5 = 4.5
u = 4.5

Simplifying
u = 4.5

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