8z-7=9z-2z

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Solution for 8z-7=9z-2z equation:


Simplifying
8z + -7 = 9z + -2z

Reorder the terms:
-7 + 8z = 9z + -2z

Combine like terms: 9z + -2z = 7z
-7 + 8z = 7z

Solving
-7 + 8z = 7z

Solving for variable 'z'.

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

Add '-7z' to each side of the equation.
-7 + 8z + -7z = 7z + -7z

Combine like terms: 8z + -7z = 1z
-7 + 1z = 7z + -7z

Combine like terms: 7z + -7z = 0
-7 + 1z = 0

Add '7' to each side of the equation.
-7 + 7 + 1z = 0 + 7

Combine like terms: -7 + 7 = 0
0 + 1z = 0 + 7
1z = 0 + 7

Combine like terms: 0 + 7 = 7
1z = 7

Divide each side by '1'.
z = 7

Simplifying
z = 7

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