230=20-u

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Solution for 230=20-u equation:


Simplifying
230 = 20 + -1u

Solving
230 = 20 + -1u

Solving for variable 'u'.

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

Add 'u' to each side of the equation.
230 + u = 20 + -1u + u

Combine like terms: -1u + u = 0
230 + u = 20 + 0
230 + u = 20

Add '-230' to each side of the equation.
230 + -230 + u = 20 + -230

Combine like terms: 230 + -230 = 0
0 + u = 20 + -230
u = 20 + -230

Combine like terms: 20 + -230 = -210
u = -210

Simplifying
u = -210

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