7u-28=4(u-4)

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Solution for 7u-28=4(u-4) equation:


Simplifying
7u + -28 = 4(u + -4)

Reorder the terms:
-28 + 7u = 4(u + -4)

Reorder the terms:
-28 + 7u = 4(-4 + u)
-28 + 7u = (-4 * 4 + u * 4)
-28 + 7u = (-16 + 4u)

Solving
-28 + 7u = -16 + 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.
-28 + 7u + -4u = -16 + 4u + -4u

Combine like terms: 7u + -4u = 3u
-28 + 3u = -16 + 4u + -4u

Combine like terms: 4u + -4u = 0
-28 + 3u = -16 + 0
-28 + 3u = -16

Add '28' to each side of the equation.
-28 + 28 + 3u = -16 + 28

Combine like terms: -28 + 28 = 0
0 + 3u = -16 + 28
3u = -16 + 28

Combine like terms: -16 + 28 = 12
3u = 12

Divide each side by '3'.
u = 4

Simplifying
u = 4

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