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

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


Simplifying
-2x + -9 + -4x = 9x + 21

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

Combine like terms: -2x + -4x = -6x
-9 + -6x = 9x + 21

Reorder the terms:
-9 + -6x = 21 + 9x

Solving
-9 + -6x = 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.
-9 + -6x + -9x = 21 + 9x + -9x

Combine like terms: -6x + -9x = -15x
-9 + -15x = 21 + 9x + -9x

Combine like terms: 9x + -9x = 0
-9 + -15x = 21 + 0
-9 + -15x = 21

Add '9' to each side of the equation.
-9 + 9 + -15x = 21 + 9

Combine like terms: -9 + 9 = 0
0 + -15x = 21 + 9
-15x = 21 + 9

Combine like terms: 21 + 9 = 30
-15x = 30

Divide each side by '-15'.
x = -2

Simplifying
x = -2

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