84=66-3x

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Solution for 84=66-3x equation:


Simplifying
84 = 66 + -3x

Solving
84 = 66 + -3x

Solving for variable 'x'.

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

Add '3x' to each side of the equation.
84 + 3x = 66 + -3x + 3x

Combine like terms: -3x + 3x = 0
84 + 3x = 66 + 0
84 + 3x = 66

Add '-84' to each side of the equation.
84 + -84 + 3x = 66 + -84

Combine like terms: 84 + -84 = 0
0 + 3x = 66 + -84
3x = 66 + -84

Combine like terms: 66 + -84 = -18
3x = -18

Divide each side by '3'.
x = -6

Simplifying
x = -6

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