(u-4)*7=42

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Solution for (u-4)*7=42 equation:


Simplifying
(u + -4) * 7 = 42

Reorder the terms:
(-4 + u) * 7 = 42

Reorder the terms for easier multiplication:
7(-4 + u) = 42
(-4 * 7 + u * 7) = 42
(-28 + 7u) = 42

Solving
-28 + 7u = 42

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 = 42 + 28

Combine like terms: -28 + 28 = 0
0 + 7u = 42 + 28
7u = 42 + 28

Combine like terms: 42 + 28 = 70
7u = 70

Divide each side by '7'.
u = 10

Simplifying
u = 10

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