-28+z=21

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Solution for -28+z=21 equation: 


Simplifying
-28 + z = 21

Solving
-28 + z = 21

Solving for variable 'z'.

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

Add '28' to each side of the equation.
-28 + 28 + z = 21 + 28

Combine like terms: -28 + 28 = 0
0 + z = 21 + 28
z = 21 + 28

Combine like terms: 21 + 28 = 49
z = 49

Simplifying
z = 49

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