-18u+24+9u=7u+42

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Solution for -18u+24+9u=7u+42 equation:


Simplifying
-18u + 24 + 9u = 7u + 42

Reorder the terms:
24 + -18u + 9u = 7u + 42

Combine like terms: -18u + 9u = -9u
24 + -9u = 7u + 42

Reorder the terms:
24 + -9u = 42 + 7u

Solving
24 + -9u = 42 + 7u

Solving for variable 'u'.

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

Add '-7u' to each side of the equation.
24 + -9u + -7u = 42 + 7u + -7u

Combine like terms: -9u + -7u = -16u
24 + -16u = 42 + 7u + -7u

Combine like terms: 7u + -7u = 0
24 + -16u = 42 + 0
24 + -16u = 42

Add '-24' to each side of the equation.
24 + -24 + -16u = 42 + -24

Combine like terms: 24 + -24 = 0
0 + -16u = 42 + -24
-16u = 42 + -24

Combine like terms: 42 + -24 = 18
-16u = 18

Divide each side by '-16'.
u = -1.125

Simplifying
u = -1.125

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