4-2x=9x+21

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Solution for 4-2x=9x+21 equation:


Simplifying
4 + -2x = 9x + 21

Reorder the terms:
4 + -2x = 21 + 9x

Solving
4 + -2x = 21 + 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.
4 + -2x + -9x = 21 + 9x + -9x

Combine like terms: -2x + -9x = -11x
4 + -11x = 21 + 9x + -9x

Combine like terms: 9x + -9x = 0
4 + -11x = 21 + 0
4 + -11x = 21

Add '-4' to each side of the equation.
4 + -4 + -11x = 21 + -4

Combine like terms: 4 + -4 = 0
0 + -11x = 21 + -4
-11x = 21 + -4

Combine like terms: 21 + -4 = 17
-11x = 17

Divide each side by '-11'.
x = -1.545454545

Simplifying
x = -1.545454545

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