84-3x=45

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Solution for 84-3x=45 equation: 


Simplifying
84 + -3x = 45

Solving
84 + -3x = 45

Solving for variable 'x'.

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

Add '-84' to each side of the equation.
84 + -84 + -3x = 45 + -84

Combine like terms: 84 + -84 = 0
0 + -3x = 45 + -84
-3x = 45 + -84

Combine like terms: 45 + -84 = -39
-3x = -39

Divide each side by '-3'.
x = 13

Simplifying
x = 13

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