13z-6=7z+9

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Solution for 13z-6=7z+9 equation:


Simplifying
13z + -6 = 7z + 9

Reorder the terms:
-6 + 13z = 7z + 9

Reorder the terms:
-6 + 13z = 9 + 7z

Solving
-6 + 13z = 9 + 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.
-6 + 13z + -7z = 9 + 7z + -7z

Combine like terms: 13z + -7z = 6z
-6 + 6z = 9 + 7z + -7z

Combine like terms: 7z + -7z = 0
-6 + 6z = 9 + 0
-6 + 6z = 9

Add '6' to each side of the equation.
-6 + 6 + 6z = 9 + 6

Combine like terms: -6 + 6 = 0
0 + 6z = 9 + 6
6z = 9 + 6

Combine like terms: 9 + 6 = 15
6z = 15

Divide each side by '6'.
z = 2.5

Simplifying
z = 2.5

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