15x+2x-6X-9x=20

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Solution for 15x+2x-6X-9x=20 equation:


Simplifying
15x + 2x + -6X + -9x = 20

Reorder the terms:
-6X + 15x + 2x + -9x = 20

Combine like terms: 15x + 2x = 17x
-6X + 17x + -9x = 20

Combine like terms: 17x + -9x = 8x
-6X + 8x = 20

Solving
-6X + 8x = 20

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.
-6X + 8x + -8x = 20 + -8x

Combine like terms: 8x + -8x = 0
-6X + 0 = 20 + -8x
-6X = 20 + -8x

Divide each side by '-6'.
X = -3.333333333 + 1.333333333x

Simplifying
X = -3.333333333 + 1.333333333x

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