2x-21=6x+3

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Solution for 2x-21=6x+3 equation:


Simplifying
2x + -21 = 6x + 3

Reorder the terms:
-21 + 2x = 6x + 3

Reorder the terms:
-21 + 2x = 3 + 6x

Solving
-21 + 2x = 3 + 6x

Solving for variable 'x'.

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

Add '-6x' to each side of the equation.
-21 + 2x + -6x = 3 + 6x + -6x

Combine like terms: 2x + -6x = -4x
-21 + -4x = 3 + 6x + -6x

Combine like terms: 6x + -6x = 0
-21 + -4x = 3 + 0
-21 + -4x = 3

Add '21' to each side of the equation.
-21 + 21 + -4x = 3 + 21

Combine like terms: -21 + 21 = 0
0 + -4x = 3 + 21
-4x = 3 + 21

Combine like terms: 3 + 21 = 24
-4x = 24

Divide each side by '-4'.
x = -6

Simplifying
x = -6

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