X-7=12+3

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Solution for X-7=12+3 equation: 


Simplifying
X + -7 = 12 + 3

Reorder the terms:
-7 + X = 12 + 3

Combine like terms: 12 + 3 = 15
-7 + X = 15

Solving
-7 + X = 15

Solving for variable 'X'.

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

Add '7' to each side of the equation.
-7 + 7 + X = 15 + 7

Combine like terms: -7 + 7 = 0
0 + X = 15 + 7
X = 15 + 7

Combine like terms: 15 + 7 = 22
X = 22

Simplifying
X = 22

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