3u-7=-13

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Solution for 3u-7=-13 equation: 


Simplifying
3u + -7 = -13

Reorder the terms:
-7 + 3u = -13

Solving
-7 + 3u = -13

Solving for variable 'u'.

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

Add '7' to each side of the equation.
-7 + 7 + 3u = -13 + 7

Combine like terms: -7 + 7 = 0
0 + 3u = -13 + 7
3u = -13 + 7

Combine like terms: -13 + 7 = -6
3u = -6

Divide each side by '3'.
u = -2

Simplifying
u = -2

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