-(3z-(6z+9))=9+(2z+3)

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Solution for -(3z-(6z+9))=9+(2z+3) equation:


Simplifying
-1(3z + -1(6z + 9)) = 9 + (2z + 3)

Reorder the terms:
-1(3z + -1(9 + 6z)) = 9 + (2z + 3)
-1(3z + (9 * -1 + 6z * -1)) = 9 + (2z + 3)
-1(3z + (-9 + -6z)) = 9 + (2z + 3)

Reorder the terms:
-1(-9 + 3z + -6z) = 9 + (2z + 3)

Combine like terms: 3z + -6z = -3z
-1(-9 + -3z) = 9 + (2z + 3)
(-9 * -1 + -3z * -1) = 9 + (2z + 3)
(9 + 3z) = 9 + (2z + 3)

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

Remove parenthesis around (3 + 2z)
9 + 3z = 9 + 3 + 2z

Combine like terms: 9 + 3 = 12
9 + 3z = 12 + 2z

Solving
9 + 3z = 12 + 2z

Solving for variable 'z'.

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

Add '-2z' to each side of the equation.
9 + 3z + -2z = 12 + 2z + -2z

Combine like terms: 3z + -2z = 1z
9 + 1z = 12 + 2z + -2z

Combine like terms: 2z + -2z = 0
9 + 1z = 12 + 0
9 + 1z = 12

Add '-9' to each side of the equation.
9 + -9 + 1z = 12 + -9

Combine like terms: 9 + -9 = 0
0 + 1z = 12 + -9
1z = 12 + -9

Combine like terms: 12 + -9 = 3
1z = 3

Divide each side by '1'.
z = 3

Simplifying
z = 3

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