51-2x=9x+18

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Solution for 51-2x=9x+18 equation:


Simplifying
51 + -2x = 9x + 18

Reorder the terms:
51 + -2x = 18 + 9x

Solving
51 + -2x = 18 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
51 + -2x + -9x = 18 + 9x + -9x

Combine like terms: -2x + -9x = -11x
51 + -11x = 18 + 9x + -9x

Combine like terms: 9x + -9x = 0
51 + -11x = 18 + 0
51 + -11x = 18

Add '-51' to each side of the equation.
51 + -51 + -11x = 18 + -51

Combine like terms: 51 + -51 = 0
0 + -11x = 18 + -51
-11x = 18 + -51

Combine like terms: 18 + -51 = -33
-11x = -33

Divide each side by '-11'.
x = 3

Simplifying
x = 3

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