3u=4u-7

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Solution for 3u=4u-7 equation: 


Simplifying
3u = 4u + -7

Reorder the terms:
3u = -7 + 4u

Solving
3u = -7 + 4u

Solving for variable 'u'.

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

Add '-4u' to each side of the equation.
3u + -4u = -7 + 4u + -4u

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

Combine like terms: 4u + -4u = 0
-1u = -7 + 0
-1u = -7

Divide each side by '-1'.
u = 7

Simplifying
u = 7

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