X-(-21)=25

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Solution for X-(-21)=25 equation: 


Simplifying
X + -1(-21) = 25

Multiply -1 * -21
X + 21 = 25

Reorder the terms:
21 + X = 25

Solving
21 + X = 25

Solving for variable 'X'.

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

Add '-21' to each side of the equation.
21 + -21 + X = 25 + -21

Combine like terms: 21 + -21 = 0
0 + X = 25 + -21
X = 25 + -21

Combine like terms: 25 + -21 = 4
X = 4

Simplifying
X = 4

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