2X+4=3+9

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Solution for 2X+4=3+9 equation: 


Simplifying
2X + 4 = 3 + 9

Reorder the terms:
4 + 2X = 3 + 9

Combine like terms: 3 + 9 = 12
4 + 2X = 12

Solving
4 + 2X = 12

Solving for variable 'X'.

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

Add '-4' to each side of the equation.
4 + -4 + 2X = 12 + -4

Combine like terms: 4 + -4 = 0
0 + 2X = 12 + -4
2X = 12 + -4

Combine like terms: 12 + -4 = 8
2X = 8

Divide each side by '2'.
X = 4

Simplifying
X = 4

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