7[u-8]=3[u+4]

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Solution for 7[u-8]=3[u+4] equation:


Simplifying
7[u + -8] = 3[u + 4]

Reorder the terms:
7[-8 + u] = 3[u + 4]
[-8 * 7 + u * 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 = 4u
-56 + 4u = 12 + 3u + -3u

Combine like terms: 3u + -3u = 0
-56 + 4u = 12 + 0
-56 + 4u = 12

Add '56' to each side of the equation.
-56 + 56 + 4u = 12 + 56

Combine like terms: -56 + 56 = 0
0 + 4u = 12 + 56
4u = 12 + 56

Combine like terms: 12 + 56 = 68
4u = 68

Divide each side by '4'.
u = 17

Simplifying
u = 17

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