3(u+4)=-4u+40

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Solution for 3(u+4)=-4u+40 equation:


Simplifying
3(u + 4) = -4u + 40

Reorder the terms:
3(4 + u) = -4u + 40
(4 * 3 + u * 3) = -4u + 40
(12 + 3u) = -4u + 40

Reorder the terms:
12 + 3u = 40 + -4u

Solving
12 + 3u = 40 + -4u

Solving for variable 'u'.

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

Add '4u' to each side of the equation.
12 + 3u + 4u = 40 + -4u + 4u

Combine like terms: 3u + 4u = 7u
12 + 7u = 40 + -4u + 4u

Combine like terms: -4u + 4u = 0
12 + 7u = 40 + 0
12 + 7u = 40

Add '-12' to each side of the equation.
12 + -12 + 7u = 40 + -12

Combine like terms: 12 + -12 = 0
0 + 7u = 40 + -12
7u = 40 + -12

Combine like terms: 40 + -12 = 28
7u = 28

Divide each side by '7'.
u = 4

Simplifying
u = 4

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