4(u+5)+-7u=-1

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Solution for 4(u+5)+-7u=-1 equation:


Simplifying
4(u + 5) + -7u = -1

Reorder the terms:
4(5 + u) + -7u = -1
(5 * 4 + u * 4) + -7u = -1
(20 + 4u) + -7u = -1

Combine like terms: 4u + -7u = -3u
20 + -3u = -1

Solving
20 + -3u = -1

Solving for variable 'u'.

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

Add '-20' to each side of the equation.
20 + -20 + -3u = -1 + -20

Combine like terms: 20 + -20 = 0
0 + -3u = -1 + -20
-3u = -1 + -20

Combine like terms: -1 + -20 = -21
-3u = -21

Divide each side by '-3'.
u = 7

Simplifying
u = 7

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