7(u-4)=28

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


Simplifying
7(u + -4) = 28

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

Solving
-28 + 7u = 28

Solving for variable 'u'.

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

Add '28' to each side of the equation.
-28 + 28 + 7u = 28 + 28

Combine like terms: -28 + 28 = 0
0 + 7u = 28 + 28
7u = 28 + 28

Combine like terms: 28 + 28 = 56
7u = 56

Divide each side by '7'.
u = 8

Simplifying
u = 8

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