12X-121=4X-9

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Solution for 12X-121=4X-9 equation:


Simplifying
12X + -121 = 4X + -9

Reorder the terms:
-121 + 12X = 4X + -9

Reorder the terms:
-121 + 12X = -9 + 4X

Solving
-121 + 12X = -9 + 4X

Solving for variable 'X'.

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

Add '-4X' to each side of the equation.
-121 + 12X + -4X = -9 + 4X + -4X

Combine like terms: 12X + -4X = 8X
-121 + 8X = -9 + 4X + -4X

Combine like terms: 4X + -4X = 0
-121 + 8X = -9 + 0
-121 + 8X = -9

Add '121' to each side of the equation.
-121 + 121 + 8X = -9 + 121

Combine like terms: -121 + 121 = 0
0 + 8X = -9 + 121
8X = -9 + 121

Combine like terms: -9 + 121 = 112
8X = 112

Divide each side by '8'.
X = 14

Simplifying
X = 14

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