-9(u-6)=-3u+42

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Solution for -9(u-6)=-3u+42 equation:


Simplifying
-9(u + -6) = -3u + 42

Reorder the terms:
-9(-6 + u) = -3u + 42
(-6 * -9 + u * -9) = -3u + 42
(54 + -9u) = -3u + 42

Reorder the terms:
54 + -9u = 42 + -3u

Solving
54 + -9u = 42 + -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.
54 + -9u + 3u = 42 + -3u + 3u

Combine like terms: -9u + 3u = -6u
54 + -6u = 42 + -3u + 3u

Combine like terms: -3u + 3u = 0
54 + -6u = 42 + 0
54 + -6u = 42

Add '-54' to each side of the equation.
54 + -54 + -6u = 42 + -54

Combine like terms: 54 + -54 = 0
0 + -6u = 42 + -54
-6u = 42 + -54

Combine like terms: 42 + -54 = -12
-6u = -12

Divide each side by '-6'.
u = 2

Simplifying
u = 2

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