9+9z-8=9z+13-4z

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Solution for 9+9z-8=9z+13-4z equation:


Simplifying
9 + 9z + -8 = 9z + 13 + -4z

Reorder the terms:
9 + -8 + 9z = 9z + 13 + -4z

Combine like terms: 9 + -8 = 1
1 + 9z = 9z + 13 + -4z

Reorder the terms:
1 + 9z = 13 + 9z + -4z

Combine like terms: 9z + -4z = 5z
1 + 9z = 13 + 5z

Solving
1 + 9z = 13 + 5z

Solving for variable 'z'.

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

Add '-5z' to each side of the equation.
1 + 9z + -5z = 13 + 5z + -5z

Combine like terms: 9z + -5z = 4z
1 + 4z = 13 + 5z + -5z

Combine like terms: 5z + -5z = 0
1 + 4z = 13 + 0
1 + 4z = 13

Add '-1' to each side of the equation.
1 + -1 + 4z = 13 + -1

Combine like terms: 1 + -1 = 0
0 + 4z = 13 + -1
4z = 13 + -1

Combine like terms: 13 + -1 = 12
4z = 12

Divide each side by '4'.
z = 3

Simplifying
z = 3

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