84-3x=8x+18

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Solution for 84-3x=8x+18 equation:


Simplifying
84 + -3x = 8x + 18

Reorder the terms:
84 + -3x = 18 + 8x

Solving
84 + -3x = 18 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
84 + -3x + -8x = 18 + 8x + -8x

Combine like terms: -3x + -8x = -11x
84 + -11x = 18 + 8x + -8x

Combine like terms: 8x + -8x = 0
84 + -11x = 18 + 0
84 + -11x = 18

Add '-84' to each side of the equation.
84 + -84 + -11x = 18 + -84

Combine like terms: 84 + -84 = 0
0 + -11x = 18 + -84
-11x = 18 + -84

Combine like terms: 18 + -84 = -66
-11x = -66

Divide each side by '-11'.
x = 6

Simplifying
x = 6

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