x-6x=21+15+3x

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Solution for x-6x=21+15+3x equation:


Simplifying
x + -6x = 21 + 15 + 3x

Combine like terms: x + -6x = -5x
-5x = 21 + 15 + 3x

Combine like terms: 21 + 15 = 36
-5x = 36 + 3x

Solving
-5x = 36 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
-5x + -3x = 36 + 3x + -3x

Combine like terms: -5x + -3x = -8x
-8x = 36 + 3x + -3x

Combine like terms: 3x + -3x = 0
-8x = 36 + 0
-8x = 36

Divide each side by '-8'.
x = -4.5

Simplifying
x = -4.5

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