(9z+12)-(6z+8)=4z

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Solution for (9z+12)-(6z+8)=4z equation:


Simplifying
(9z + 12) + -1(6z + 8) = 4z

Reorder the terms:
(12 + 9z) + -1(6z + 8) = 4z

Remove parenthesis around (12 + 9z)
12 + 9z + -1(6z + 8) = 4z

Reorder the terms:
12 + 9z + -1(8 + 6z) = 4z
12 + 9z + (8 * -1 + 6z * -1) = 4z
12 + 9z + (-8 + -6z) = 4z

Reorder the terms:
12 + -8 + 9z + -6z = 4z

Combine like terms: 12 + -8 = 4
4 + 9z + -6z = 4z

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

Solving
4 + 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.
4 + 3z + -4z = 4z + -4z

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

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

Add '-4' to each side of the equation.
4 + -4 + -1z = 0 + -4

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

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

Divide each side by '-1'.
z = 4

Simplifying
z = 4

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