9z+15-2z=

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Solution for 9z+15-2z= equation:


Simplifying
9z + 15 + -2z = 0

Reorder the terms:
15 + 9z + -2z = 0

Combine like terms: 9z + -2z = 7z
15 + 7z = 0

Solving
15 + 7z = 0

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 + 7z = 0 + -15

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

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

Divide each side by '7'.
z = -2.142857143

Simplifying
z = -2.142857143

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