40+u=4x-30

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Solution for 40+u=4x-30 equation: 


Simplifying
40 + u = 4x + -30

Reorder the terms:
40 + u = -30 + 4x

Solving
40 + u = -30 + 4x

Solving for variable 'u'.

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

Add '-40' to each side of the equation.
40 + -40 + u = -30 + -40 + 4x

Combine like terms: 40 + -40 = 0
0 + u = -30 + -40 + 4x
u = -30 + -40 + 4x

Combine like terms: -30 + -40 = -70
u = -70 + 4x

Simplifying
u = -70 + 4x

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