8=15-z

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Solution for 8=15-z equation:


Simplifying
8 = 15 + -1z

Solving
8 = 15 + -1z

Solving for variable 'z'.

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

Add 'z' to each side of the equation.
8 + z = 15 + -1z + z

Combine like terms: -1z + z = 0
8 + z = 15 + 0
8 + z = 15

Add '-8' to each side of the equation.
8 + -8 + z = 15 + -8

Combine like terms: 8 + -8 = 0
0 + z = 15 + -8
z = 15 + -8

Combine like terms: 15 + -8 = 7
z = 7

Simplifying
z = 7

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