-18=7u+9-10u

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Solution for -18=7u+9-10u equation:


Simplifying
-18 = 7u + 9 + -10u

Reorder the terms:
-18 = 9 + 7u + -10u

Combine like terms: 7u + -10u = -3u
-18 = 9 + -3u

Solving
-18 = 9 + -3u

Solving for variable 'u'.

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

Add '3u' to each side of the equation.
-18 + 3u = 9 + -3u + 3u

Combine like terms: -3u + 3u = 0
-18 + 3u = 9 + 0
-18 + 3u = 9

Add '18' to each side of the equation.
-18 + 18 + 3u = 9 + 18

Combine like terms: -18 + 18 = 0
0 + 3u = 9 + 18
3u = 9 + 18

Combine like terms: 9 + 18 = 27
3u = 27

Divide each side by '3'.
u = 9

Simplifying
u = 9

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