15-2z=31

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Solution for 15-2z=31 equation: 


Simplifying
15 + -2z = 31

Solving
15 + -2z = 31

Solving for variable 'z'.

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

Add '-15' to each side of the equation.
15 + -15 + -2z = 31 + -15

Combine like terms: 15 + -15 = 0
0 + -2z = 31 + -15
-2z = 31 + -15

Combine like terms: 31 + -15 = 16
-2z = 16

Divide each side by '-2'.
z = -8

Simplifying
z = -8

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