2x-6=3x-21

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


Simplifying
2x + -6 = 3x + -21

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

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

Solving
-6 + 2x = -21 + 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.
-6 + 2x + -3x = -21 + 3x + -3x

Combine like terms: 2x + -3x = -1x
-6 + -1x = -21 + 3x + -3x

Combine like terms: 3x + -3x = 0
-6 + -1x = -21 + 0
-6 + -1x = -21

Add '6' to each side of the equation.
-6 + 6 + -1x = -21 + 6

Combine like terms: -6 + 6 = 0
0 + -1x = -21 + 6
-1x = -21 + 6

Combine like terms: -21 + 6 = -15
-1x = -15

Divide each side by '-1'.
x = 15

Simplifying
x = 15

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