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

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


Simplifying
3(4z + 9) + -4(z + 9) = 0

Reorder the terms:
3(9 + 4z) + -4(z + 9) = 0
(9 * 3 + 4z * 3) + -4(z + 9) = 0
(27 + 12z) + -4(z + 9) = 0

Reorder the terms:
27 + 12z + -4(9 + z) = 0
27 + 12z + (9 * -4 + z * -4) = 0
27 + 12z + (-36 + -4z) = 0

Reorder the terms:
27 + -36 + 12z + -4z = 0

Combine like terms: 27 + -36 = -9
-9 + 12z + -4z = 0

Combine like terms: 12z + -4z = 8z
-9 + 8z = 0

Solving
-9 + 8z = 0

Solving for variable 'z'.

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

Add '9' to each side of the equation.
-9 + 9 + 8z = 0 + 9

Combine like terms: -9 + 9 = 0
0 + 8z = 0 + 9
8z = 0 + 9

Combine like terms: 0 + 9 = 9
8z = 9

Divide each side by '8'.
z = 1.125

Simplifying
z = 1.125

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