143=243-u

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Solution for 143=243-u equation:


Simplifying
143 = 243 + -1u

Solving
143 = 243 + -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.
143 + u = 243 + -1u + u

Combine like terms: -1u + u = 0
143 + u = 243 + 0
143 + u = 243

Add '-143' to each side of the equation.
143 + -143 + u = 243 + -143

Combine like terms: 143 + -143 = 0
0 + u = 243 + -143
u = 243 + -143

Combine like terms: 243 + -143 = 100
u = 100

Simplifying
u = 100

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