z+30=40

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Solution for z+30=40 equation: 


Simplifying
z + 30 = 40

Reorder the terms:
30 + z = 40

Solving
30 + z = 40

Solving for variable 'z'.

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

Add '-30' to each side of the equation.
30 + -30 + z = 40 + -30

Combine like terms: 30 + -30 = 0
0 + z = 40 + -30
z = 40 + -30

Combine like terms: 40 + -30 = 10
z = 10

Simplifying
z = 10

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