-3(u+4)=6u+42

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Solution for -3(u+4)=6u+42 equation:


Simplifying
-3(u + 4) = 6u + 42

Reorder the terms:
-3(4 + u) = 6u + 42
(4 * -3 + u * -3) = 6u + 42
(-12 + -3u) = 6u + 42

Reorder the terms:
-12 + -3u = 42 + 6u

Solving
-12 + -3u = 42 + 6u

Solving for variable 'u'.

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

Add '-6u' to each side of the equation.
-12 + -3u + -6u = 42 + 6u + -6u

Combine like terms: -3u + -6u = -9u
-12 + -9u = 42 + 6u + -6u

Combine like terms: 6u + -6u = 0
-12 + -9u = 42 + 0
-12 + -9u = 42

Add '12' to each side of the equation.
-12 + 12 + -9u = 42 + 12

Combine like terms: -12 + 12 = 0
0 + -9u = 42 + 12
-9u = 42 + 12

Combine like terms: 42 + 12 = 54
-9u = 54

Divide each side by '-9'.
u = -6

Simplifying
u = -6

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