10u-84-3u=

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Solution for 10u-84-3u= equation:


Simplifying
10u + -84 + -3u = 0

Reorder the terms:
-84 + 10u + -3u = 0

Combine like terms: 10u + -3u = 7u
-84 + 7u = 0

Solving
-84 + 7u = 0

Solving for variable 'u'.

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

Add '84' to each side of the equation.
-84 + 84 + 7u = 0 + 84

Combine like terms: -84 + 84 = 0
0 + 7u = 0 + 84
7u = 0 + 84

Combine like terms: 0 + 84 = 84
7u = 84

Divide each side by '7'.
u = 12

Simplifying
u = 12

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