9z-7=2z-2

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


Simplifying
9z + -7 = 2z + -2

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

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

Solving
-7 + 9z = -2 + 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.
-7 + 9z + -2z = -2 + 2z + -2z

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

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

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

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

Combine like terms: -2 + 7 = 5
7z = 5

Divide each side by '7'.
z = 0.7142857143

Simplifying
z = 0.7142857143

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