9z-15=2z+7

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Solution for 9z-15=2z+7 equation:


Simplifying
9z + -15 = 2z + 7

Reorder the terms:
-15 + 9z = 2z + 7

Reorder the terms:
-15 + 9z = 7 + 2z

Solving
-15 + 9z = 7 + 2z

Solving for variable 'z'.

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

Add '-2z' to each side of the equation.
-15 + 9z + -2z = 7 + 2z + -2z

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

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

Add '15' to each side of the equation.
-15 + 15 + 7z = 7 + 15

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

Combine like terms: 7 + 15 = 22
7z = 22

Divide each side by '7'.
z = 3.142857143

Simplifying
z = 3.142857143

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