7=3u+4u

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Solution for 7=3u+4u equation:


Simplifying
7 = 3u + 4u

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

Solving
7 = 7u

Solving for variable 'u'.

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

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

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

Add '-7' to each side of the equation.
7 + -7 + -7u = 0 + -7

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

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

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

Simplifying
u = 1

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