u-4=2u

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Solution for u-4=2u equation:


Simplifying
u + -4 = 2u

Reorder the terms:
-4 + u = 2u

Solving
-4 + u = 2u

Solving for variable 'u'.

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

Add '-2u' to each side of the equation.
-4 + u + -2u = 2u + -2u

Combine like terms: u + -2u = -1u
-4 + -1u = 2u + -2u

Combine like terms: 2u + -2u = 0
-4 + -1u = 0

Add '4' to each side of the equation.
-4 + 4 + -1u = 0 + 4

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

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

Divide each side by '-1'.
u = -4

Simplifying
u = -4

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