7(u-4)=-8-13

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Solution for 7(u-4)=-8-13 equation:


Simplifying
7(u + -4) = -8 + -13

Reorder the terms:
7(-4 + u) = -8 + -13
(-4 * 7 + u * 7) = -8 + -13
(-28 + 7u) = -8 + -13

Combine like terms: -8 + -13 = -21
-28 + 7u = -21

Solving
-28 + 7u = -21

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 = -21 + 28

Combine like terms: -28 + 28 = 0
0 + 7u = -21 + 28
7u = -21 + 28

Combine like terms: -21 + 28 = 7
7u = 7

Divide each side by '7'.
u = 1

Simplifying
u = 1

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