20x-3=30+12x-9

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Solution for 20x-3=30+12x-9 equation:


Simplifying
20x + -3 = 30 + 12x + -9

Reorder the terms:
-3 + 20x = 30 + 12x + -9

Reorder the terms:
-3 + 20x = 30 + -9 + 12x

Combine like terms: 30 + -9 = 21
-3 + 20x = 21 + 12x

Solving
-3 + 20x = 21 + 12x

Solving for variable 'x'.

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

Add '-12x' to each side of the equation.
-3 + 20x + -12x = 21 + 12x + -12x

Combine like terms: 20x + -12x = 8x
-3 + 8x = 21 + 12x + -12x

Combine like terms: 12x + -12x = 0
-3 + 8x = 21 + 0
-3 + 8x = 21

Add '3' to each side of the equation.
-3 + 3 + 8x = 21 + 3

Combine like terms: -3 + 3 = 0
0 + 8x = 21 + 3
8x = 21 + 3

Combine like terms: 21 + 3 = 24
8x = 24

Divide each side by '8'.
x = 3

Simplifying
x = 3

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