8X+3+X=12

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Solution for 8X+3+X=12 equation: 


Simplifying
8X + 3 + X = 12

Reorder the terms:
3 + 8X + X = 12

Combine like terms: 8X + X = 9X
3 + 9X = 12

Solving
3 + 9X = 12

Solving for variable 'X'.

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

Add '-3' to each side of the equation.
3 + -3 + 9X = 12 + -3

Combine like terms: 3 + -3 = 0
0 + 9X = 12 + -3
9X = 12 + -3

Combine like terms: 12 + -3 = 9
9X = 9

Divide each side by '9'.
X = 1

Simplifying
X = 1

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