-18=15z-9(2z-2)

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Solution for -18=15z-9(2z-2) equation:


Simplifying
-18 = 15z + -9(2z + -2)

Reorder the terms:
-18 = 15z + -9(-2 + 2z)
-18 = 15z + (-2 * -9 + 2z * -9)
-18 = 15z + (18 + -18z)

Reorder the terms:
-18 = 18 + 15z + -18z

Combine like terms: 15z + -18z = -3z
-18 = 18 + -3z

Solving
-18 = 18 + -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.
-18 + 3z = 18 + -3z + 3z

Combine like terms: -3z + 3z = 0
-18 + 3z = 18 + 0
-18 + 3z = 18

Add '18' to each side of the equation.
-18 + 18 + 3z = 18 + 18

Combine like terms: -18 + 18 = 0
0 + 3z = 18 + 18
3z = 18 + 18

Combine like terms: 18 + 18 = 36
3z = 36

Divide each side by '3'.
z = 12

Simplifying
z = 12

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