15-2z=7

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Solution for 15-2z=7 equation: 


Simplifying
15 + -2z = 7

Solving
15 + -2z = 7

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 = 7 + -15

Combine like terms: 15 + -15 = 0
0 + -2z = 7 + -15
-2z = 7 + -15

Combine like terms: 7 + -15 = -8
-2z = -8

Divide each side by '-2'.
z = 4

Simplifying
z = 4

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