3u+v=-7

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Solution for 3u+v=-7 equation: 


Simplifying
3u + v = -7

Solving
3u + v = -7

Solving for variable 'u'.

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

Add '-1v' to each side of the equation.
3u + v + -1v = -7 + -1v

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

Divide each side by '3'.
u = -2.333333333 + -0.3333333333v

Simplifying
u = -2.333333333 + -0.3333333333v

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