-3u+7=1

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Solution for -3u+7=1 equation: 


Simplifying
-3u + 7 = 1

Reorder the terms:
7 + -3u = 1

Solving
7 + -3u = 1

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 = 1 + -7

Combine like terms: 7 + -7 = 0
0 + -3u = 1 + -7
-3u = 1 + -7

Combine like terms: 1 + -7 = -6
-3u = -6

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

Simplifying
u = 2

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