Z+25+Z-15=99

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Solution for Z+25+Z-15=99 equation:


Simplifying
Z + 25 + Z + -15 = 99

Reorder the terms:
25 + -15 + Z + Z = 99

Combine like terms: 25 + -15 = 10
10 + Z + Z = 99

Combine like terms: Z + Z = 2Z
10 + 2Z = 99

Solving
10 + 2Z = 99

Solving for variable 'Z'.

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

Add '-10' to each side of the equation.
10 + -10 + 2Z = 99 + -10

Combine like terms: 10 + -10 = 0
0 + 2Z = 99 + -10
2Z = 99 + -10

Combine like terms: 99 + -10 = 89
2Z = 89

Divide each side by '2'.
Z = 44.5

Simplifying
Z = 44.5

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