0.75u-1=8

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Solution for 0.75u-1=8 equation: 


Simplifying
0.75u + -1 = 8

Reorder the terms:
-1 + 0.75u = 8

Solving
-1 + 0.75u = 8

Solving for variable 'u'.

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

Add '1' to each side of the equation.
-1 + 1 + 0.75u = 8 + 1

Combine like terms: -1 + 1 = 0
0 + 0.75u = 8 + 1
0.75u = 8 + 1

Combine like terms: 8 + 1 = 9
0.75u = 9

Divide each side by '0.75'.
u = 12

Simplifying
u = 12

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