3z-9=7+5z

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Solution for 3z-9=7+5z equation:


Simplifying
3z + -9 = 7 + 5z

Reorder the terms:
-9 + 3z = 7 + 5z

Solving
-9 + 3z = 7 + 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.
-9 + 3z + -5z = 7 + 5z + -5z

Combine like terms: 3z + -5z = -2z
-9 + -2z = 7 + 5z + -5z

Combine like terms: 5z + -5z = 0
-9 + -2z = 7 + 0
-9 + -2z = 7

Add '9' to each side of the equation.
-9 + 9 + -2z = 7 + 9

Combine like terms: -9 + 9 = 0
0 + -2z = 7 + 9
-2z = 7 + 9

Combine like terms: 7 + 9 = 16
-2z = 16

Divide each side by '-2'.
z = -8

Simplifying
z = -8

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