3u+7=10u-4

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Solution for 3u+7=10u-4 equation:


Simplifying
3u + 7 = 10u + -4

Reorder the terms:
7 + 3u = 10u + -4

Reorder the terms:
7 + 3u = -4 + 10u

Solving
7 + 3u = -4 + 10u

Solving for variable 'u'.

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

Add '-10u' to each side of the equation.
7 + 3u + -10u = -4 + 10u + -10u

Combine like terms: 3u + -10u = -7u
7 + -7u = -4 + 10u + -10u

Combine like terms: 10u + -10u = 0
7 + -7u = -4 + 0
7 + -7u = -4

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

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

Combine like terms: -4 + -7 = -11
-7u = -11

Divide each side by '-7'.
u = 1.571428571

Simplifying
u = 1.571428571

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