12x-21=19x+21

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


Simplifying
12x + -21 = 19x + 21

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

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

Solving
-21 + 12x = 21 + 19x

Solving for variable 'x'.

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

Add '-19x' to each side of the equation.
-21 + 12x + -19x = 21 + 19x + -19x

Combine like terms: 12x + -19x = -7x
-21 + -7x = 21 + 19x + -19x

Combine like terms: 19x + -19x = 0
-21 + -7x = 21 + 0
-21 + -7x = 21

Add '21' to each side of the equation.
-21 + 21 + -7x = 21 + 21

Combine like terms: -21 + 21 = 0
0 + -7x = 21 + 21
-7x = 21 + 21

Combine like terms: 21 + 21 = 42
-7x = 42

Divide each side by '-7'.
x = -6

Simplifying
x = -6

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