9z-7=5z+13

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Solution for 9z-7=5z+13 equation:


Simplifying
9z + -7 = 5z + 13

Reorder the terms:
-7 + 9z = 5z + 13

Reorder the terms:
-7 + 9z = 13 + 5z

Solving
-7 + 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.
-7 + 9z + -5z = 13 + 5z + -5z

Combine like terms: 9z + -5z = 4z
-7 + 4z = 13 + 5z + -5z

Combine like terms: 5z + -5z = 0
-7 + 4z = 13 + 0
-7 + 4z = 13

Add '7' to each side of the equation.
-7 + 7 + 4z = 13 + 7

Combine like terms: -7 + 7 = 0
0 + 4z = 13 + 7
4z = 13 + 7

Combine like terms: 13 + 7 = 20
4z = 20

Divide each side by '4'.
z = 5

Simplifying
z = 5

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