-12=5X-8X

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Solution for -12=5X-8X equation: 


Simplifying
-12 = 5X + -8X

Combine like terms: 5X + -8X = -3X
-12 = -3X

Solving
-12 = -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.
-12 + 3X = -3X + 3X

Combine like terms: -3X + 3X = 0
-12 + 3X = 0

Add '12' to each side of the equation.
-12 + 12 + 3X = 0 + 12

Combine like terms: -12 + 12 = 0
0 + 3X = 0 + 12
3X = 0 + 12

Combine like terms: 0 + 12 = 12
3X = 12

Divide each side by '3'.
X = 4

Simplifying
X = 4

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