X-(-2)=21

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Solution for X-(-2)=21 equation: 


Simplifying
X + -1(-2) = 21

Multiply -1 * -2
X + 2 = 21

Reorder the terms:
2 + X = 21

Solving
2 + X = 21

Solving for variable 'X'.

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

Add '-2' to each side of the equation.
2 + -2 + X = 21 + -2

Combine like terms: 2 + -2 = 0
0 + X = 21 + -2
X = 21 + -2

Combine like terms: 21 + -2 = 19
X = 19

Simplifying
X = 19

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