-3z+9(z+2)-4=8

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Solution for -3z+9(z+2)-4=8 equation:


Simplifying
-3z + 9(z + 2) + -4 = 8

Reorder the terms:
-3z + 9(2 + z) + -4 = 8
-3z + (2 * 9 + z * 9) + -4 = 8
-3z + (18 + 9z) + -4 = 8

Reorder the terms:
18 + -4 + -3z + 9z = 8

Combine like terms: 18 + -4 = 14
14 + -3z + 9z = 8

Combine like terms: -3z + 9z = 6z
14 + 6z = 8

Solving
14 + 6z = 8

Solving for variable 'z'.

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

Add '-14' to each side of the equation.
14 + -14 + 6z = 8 + -14

Combine like terms: 14 + -14 = 0
0 + 6z = 8 + -14
6z = 8 + -14

Combine like terms: 8 + -14 = -6
6z = -6

Divide each side by '6'.
z = -1

Simplifying
z = -1

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