8z-9=-4+7z

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Solution for 8z-9=-4+7z equation:


Simplifying
8z + -9 = -4 + 7z

Reorder the terms:
-9 + 8z = -4 + 7z

Solving
-9 + 8z = -4 + 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.
-9 + 8z + -7z = -4 + 7z + -7z

Combine like terms: 8z + -7z = 1z
-9 + 1z = -4 + 7z + -7z

Combine like terms: 7z + -7z = 0
-9 + 1z = -4 + 0
-9 + 1z = -4

Add '9' to each side of the equation.
-9 + 9 + 1z = -4 + 9

Combine like terms: -9 + 9 = 0
0 + 1z = -4 + 9
1z = -4 + 9

Combine like terms: -4 + 9 = 5
1z = 5

Divide each side by '1'.
z = 5

Simplifying
z = 5

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