-5=7+u*3

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Solution for -5=7+u*3 equation:


Simplifying
-5 = 7 + u * 3

Reorder the terms for easier multiplication:
-5 = 7 + 3u

Solving
-5 = 7 + 3u

Solving for variable 'u'.

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

Add '-3u' to each side of the equation.
-5 + -3u = 7 + 3u + -3u

Combine like terms: 3u + -3u = 0
-5 + -3u = 7 + 0
-5 + -3u = 7

Add '5' to each side of the equation.
-5 + 5 + -3u = 7 + 5

Combine like terms: -5 + 5 = 0
0 + -3u = 7 + 5
-3u = 7 + 5

Combine like terms: 7 + 5 = 12
-3u = 12

Divide each side by '-3'.
u = -4

Simplifying
u = -4

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