30-7u=10u-4

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Solution for 30-7u=10u-4 equation:


Simplifying
30 + -7u = 10u + -4

Reorder the terms:
30 + -7u = -4 + 10u

Solving
30 + -7u = -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.
30 + -7u + -10u = -4 + 10u + -10u

Combine like terms: -7u + -10u = -17u
30 + -17u = -4 + 10u + -10u

Combine like terms: 10u + -10u = 0
30 + -17u = -4 + 0
30 + -17u = -4

Add '-30' to each side of the equation.
30 + -30 + -17u = -4 + -30

Combine like terms: 30 + -30 = 0
0 + -17u = -4 + -30
-17u = -4 + -30

Combine like terms: -4 + -30 = -34
-17u = -34

Divide each side by '-17'.
u = 2

Simplifying
u = 2

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