28=11u-7u

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Solution for 28=11u-7u equation:


Simplifying
28 = 11u + -7u

Combine like terms: 11u + -7u = 4u
28 = 4u

Solving
28 = 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 + -4u = 4u + -4u

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

Add '-28' to each side of the equation.
28 + -28 + -4u = 0 + -28

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

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

Divide each side by '-4'.
u = 7

Simplifying
u = 7

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