11=42-x

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Solution for 11=42-x equation:


Simplifying
11 = 42 + -1x

Solving
11 = 42 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
11 + x = 42 + -1x + x

Combine like terms: -1x + x = 0
11 + x = 42 + 0
11 + x = 42

Add '-11' to each side of the equation.
11 + -11 + x = 42 + -11

Combine like terms: 11 + -11 = 0
0 + x = 42 + -11
x = 42 + -11

Combine like terms: 42 + -11 = 31
x = 31

Simplifying
x = 31

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