3z+7=9z-17

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Solution for 3z+7=9z-17 equation:


Simplifying
3z + 7 = 9z + -17

Reorder the terms:
7 + 3z = 9z + -17

Reorder the terms:
7 + 3z = -17 + 9z

Solving
7 + 3z = -17 + 9z

Solving for variable 'z'.

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

Add '-9z' to each side of the equation.
7 + 3z + -9z = -17 + 9z + -9z

Combine like terms: 3z + -9z = -6z
7 + -6z = -17 + 9z + -9z

Combine like terms: 9z + -9z = 0
7 + -6z = -17 + 0
7 + -6z = -17

Add '-7' to each side of the equation.
7 + -7 + -6z = -17 + -7

Combine like terms: 7 + -7 = 0
0 + -6z = -17 + -7
-6z = -17 + -7

Combine like terms: -17 + -7 = -24
-6z = -24

Divide each side by '-6'.
z = 4

Simplifying
z = 4

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