3(z+9)-(6z-9)=-4z

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Solution for 3(z+9)-(6z-9)=-4z equation:


Simplifying
3(z + 9) + -1(6z + -9) = -4z

Reorder the terms:
3(9 + z) + -1(6z + -9) = -4z
(9 * 3 + z * 3) + -1(6z + -9) = -4z
(27 + 3z) + -1(6z + -9) = -4z

Reorder the terms:
27 + 3z + -1(-9 + 6z) = -4z
27 + 3z + (-9 * -1 + 6z * -1) = -4z
27 + 3z + (9 + -6z) = -4z

Reorder the terms:
27 + 9 + 3z + -6z = -4z

Combine like terms: 27 + 9 = 36
36 + 3z + -6z = -4z

Combine like terms: 3z + -6z = -3z
36 + -3z = -4z

Solving
36 + -3z = -4z

Solving for variable 'z'.

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

Add '4z' to each side of the equation.
36 + -3z + 4z = -4z + 4z

Combine like terms: -3z + 4z = 1z
36 + 1z = -4z + 4z

Combine like terms: -4z + 4z = 0
36 + 1z = 0

Add '-36' to each side of the equation.
36 + -36 + 1z = 0 + -36

Combine like terms: 36 + -36 = 0
0 + 1z = 0 + -36
1z = 0 + -36

Combine like terms: 0 + -36 = -36
1z = -36

Divide each side by '1'.
z = -36

Simplifying
z = -36

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