X-(-42)=39

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Solution for X-(-42)=39 equation: 


Simplifying
X + -1(-42) = 39

Multiply -1 * -42
X + 42 = 39

Reorder the terms:
42 + X = 39

Solving
42 + X = 39

Solving for variable 'X'.

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

Add '-42' to each side of the equation.
42 + -42 + X = 39 + -42

Combine like terms: 42 + -42 = 0
0 + X = 39 + -42
X = 39 + -42

Combine like terms: 39 + -42 = -3
X = -3

Simplifying
X = -3

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