9z+9=-15+-3z

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Solution for 9z+9=-15+-3z equation:


Simplifying
9z + 9 = -15 + -3z

Reorder the terms:
9 + 9z = -15 + -3z

Solving
9 + 9z = -15 + -3z

Solving for variable 'z'.

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

Add '3z' to each side of the equation.
9 + 9z + 3z = -15 + -3z + 3z

Combine like terms: 9z + 3z = 12z
9 + 12z = -15 + -3z + 3z

Combine like terms: -3z + 3z = 0
9 + 12z = -15 + 0
9 + 12z = -15

Add '-9' to each side of the equation.
9 + -9 + 12z = -15 + -9

Combine like terms: 9 + -9 = 0
0 + 12z = -15 + -9
12z = -15 + -9

Combine like terms: -15 + -9 = -24
12z = -24

Divide each side by '12'.
z = -2

Simplifying
z = -2

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