120=-6z-(-18z)

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Solution for 120=-6z-(-18z) equation:


Simplifying
120 = -6z + -1(-18z)

Remove parenthesis around (-18z)
120 = -6z + -1 * -18z

Multiply -1 * -18
120 = -6z + 18z

Combine like terms: -6z + 18z = 12z
120 = 12z

Solving
120 = 12z

Solving for variable 'z'.

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

Add '-12z' to each side of the equation.
120 + -12z = 12z + -12z

Combine like terms: 12z + -12z = 0
120 + -12z = 0

Add '-120' to each side of the equation.
120 + -120 + -12z = 0 + -120

Combine like terms: 120 + -120 = 0
0 + -12z = 0 + -120
-12z = 0 + -120

Combine like terms: 0 + -120 = -120
-12z = -120

Divide each side by '-12'.
z = 10

Simplifying
z = 10

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