100-3x=31

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Solution for 100-3x=31 equation: 


Simplifying
100 + -3x = 31

Solving
100 + -3x = 31

Solving for variable 'x'.

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

Add '-100' to each side of the equation.
100 + -100 + -3x = 31 + -100

Combine like terms: 100 + -100 = 0
0 + -3x = 31 + -100
-3x = 31 + -100

Combine like terms: 31 + -100 = -69
-3x = -69

Divide each side by '-3'.
x = 23

Simplifying
x = 23

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