3(3z-4)-4(z+5)=

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Solution for 3(3z-4)-4(z+5)= equation:


Simplifying
3(3z + -4) + -4(z + 5) = 0

Reorder the terms:
3(-4 + 3z) + -4(z + 5) = 0
(-4 * 3 + 3z * 3) + -4(z + 5) = 0
(-12 + 9z) + -4(z + 5) = 0

Reorder the terms:
-12 + 9z + -4(5 + z) = 0
-12 + 9z + (5 * -4 + z * -4) = 0
-12 + 9z + (-20 + -4z) = 0

Reorder the terms:
-12 + -20 + 9z + -4z = 0

Combine like terms: -12 + -20 = -32
-32 + 9z + -4z = 0

Combine like terms: 9z + -4z = 5z
-32 + 5z = 0

Solving
-32 + 5z = 0

Solving for variable 'z'.

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

Add '32' to each side of the equation.
-32 + 32 + 5z = 0 + 32

Combine like terms: -32 + 32 = 0
0 + 5z = 0 + 32
5z = 0 + 32

Combine like terms: 0 + 32 = 32
5z = 32

Divide each side by '5'.
z = 6.4

Simplifying
z = 6.4

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