7u+9-10u=18

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


Simplifying
7u + 9 + -10u = 18

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

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

Solving
9 + -3u = 18

Solving for variable 'u'.

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

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

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

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

Divide each side by '-3'.
u = -3

Simplifying
u = -3

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