9x-21=3x+2

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Solution for 9x-21=3x+2 equation:


Simplifying
9x + -21 = 3x + 2

Reorder the terms:
-21 + 9x = 3x + 2

Reorder the terms:
-21 + 9x = 2 + 3x

Solving
-21 + 9x = 2 + 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.
-21 + 9x + -3x = 2 + 3x + -3x

Combine like terms: 9x + -3x = 6x
-21 + 6x = 2 + 3x + -3x

Combine like terms: 3x + -3x = 0
-21 + 6x = 2 + 0
-21 + 6x = 2

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

Combine like terms: -21 + 21 = 0
0 + 6x = 2 + 21
6x = 2 + 21

Combine like terms: 2 + 21 = 23
6x = 23

Divide each side by '6'.
x = 3.833333333

Simplifying
x = 3.833333333

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