30=15+Z

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Solution for 30=15+Z equation: 


Simplifying
30 = 15 + Z

Solving
30 = 15 + Z

Solving for variable 'Z'.

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

Add '-1Z' to each side of the equation.
30 + -1Z = 15 + Z + -1Z

Combine like terms: Z + -1Z = 0
30 + -1Z = 15 + 0
30 + -1Z = 15

Add '-30' to each side of the equation.
30 + -30 + -1Z = 15 + -30

Combine like terms: 30 + -30 = 0
0 + -1Z = 15 + -30
-1Z = 15 + -30

Combine like terms: 15 + -30 = -15
-1Z = -15

Divide each side by '-1'.
Z = 15

Simplifying
Z = 15

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