x-21=-17

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Solution for x-21=-17 equation: 


Simplifying
x + -21 = -17

Reorder the terms:
-21 + x = -17

Solving
-21 + x = -17

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 = -17 + 21

Combine like terms: -21 + 21 = 0
0 + x = -17 + 21
x = -17 + 21

Combine like terms: -17 + 21 = 4
x = 4

Simplifying
x = 4

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