X+12-15=16+15

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Solution for X+12-15=16+15 equation:


Simplifying
X + 12 + -15 = 16 + 15

Reorder the terms:
12 + -15 + X = 16 + 15

Combine like terms: 12 + -15 = -3
-3 + X = 16 + 15

Combine like terms: 16 + 15 = 31
-3 + X = 31

Solving
-3 + X = 31

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 + X = 31 + 3

Combine like terms: -3 + 3 = 0
0 + X = 31 + 3
X = 31 + 3

Combine like terms: 31 + 3 = 34
X = 34

Simplifying
X = 34

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