7(8-u)=3(u+4)

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Solution for 7(8-u)=3(u+4) equation:


Simplifying
7(8 + -1u) = 3(u + 4)
(8 * 7 + -1u * 7) = 3(u + 4)
(56 + -7u) = 3(u + 4)

Reorder the terms:
56 + -7u = 3(4 + u)
56 + -7u = (4 * 3 + u * 3)
56 + -7u = (12 + 3u)

Solving
56 + -7u = 12 + 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.
56 + -7u + -3u = 12 + 3u + -3u

Combine like terms: -7u + -3u = -10u
56 + -10u = 12 + 3u + -3u

Combine like terms: 3u + -3u = 0
56 + -10u = 12 + 0
56 + -10u = 12

Add '-56' to each side of the equation.
56 + -56 + -10u = 12 + -56

Combine like terms: 56 + -56 = 0
0 + -10u = 12 + -56
-10u = 12 + -56

Combine like terms: 12 + -56 = -44
-10u = -44

Divide each side by '-10'.
u = 4.4

Simplifying
u = 4.4

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