12x+21=3x+19

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Solution for 12x+21=3x+19 equation:


Simplifying
12x + 21 = 3x + 19

Reorder the terms:
21 + 12x = 3x + 19

Reorder the terms:
21 + 12x = 19 + 3x

Solving
21 + 12x = 19 + 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 + 12x + -3x = 19 + 3x + -3x

Combine like terms: 12x + -3x = 9x
21 + 9x = 19 + 3x + -3x

Combine like terms: 3x + -3x = 0
21 + 9x = 19 + 0
21 + 9x = 19

Add '-21' to each side of the equation.
21 + -21 + 9x = 19 + -21

Combine like terms: 21 + -21 = 0
0 + 9x = 19 + -21
9x = 19 + -21

Combine like terms: 19 + -21 = -2
9x = -2

Divide each side by '9'.
x = -0.2222222222

Simplifying
x = -0.2222222222

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