4+z=25

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Solution for 4+z=25 equation: 


Simplifying
4 + z = 25

Solving
4 + z = 25

Solving for variable 'z'.

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

Add '-4' to each side of the equation.
4 + -4 + z = 25 + -4

Combine like terms: 4 + -4 = 0
0 + z = 25 + -4
z = 25 + -4

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

Simplifying
z = 21

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