3z+15=3(3z-2)+9

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Solution for 3z+15=3(3z-2)+9 equation:


Simplifying
3z + 15 = 3(3z + -2) + 9

Reorder the terms:
15 + 3z = 3(3z + -2) + 9

Reorder the terms:
15 + 3z = 3(-2 + 3z) + 9
15 + 3z = (-2 * 3 + 3z * 3) + 9
15 + 3z = (-6 + 9z) + 9

Reorder the terms:
15 + 3z = -6 + 9 + 9z

Combine like terms: -6 + 9 = 3
15 + 3z = 3 + 9z

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

Combine like terms: 3z + -9z = -6z
15 + -6z = 3 + 9z + -9z

Combine like terms: 9z + -9z = 0
15 + -6z = 3 + 0
15 + -6z = 3

Add '-15' to each side of the equation.
15 + -15 + -6z = 3 + -15

Combine like terms: 15 + -15 = 0
0 + -6z = 3 + -15
-6z = 3 + -15

Combine like terms: 3 + -15 = -12
-6z = -12

Divide each side by '-6'.
z = 2

Simplifying
z = 2

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