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

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


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

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

Reorder the terms:
-27 + -3z + -4(-4 + z) = 0
-27 + -3z + (-4 * -4 + z * -4) = 0
-27 + -3z + (16 + -4z) = 0

Reorder the terms:
-27 + 16 + -3z + -4z = 0

Combine like terms: -27 + 16 = -11
-11 + -3z + -4z = 0

Combine like terms: -3z + -4z = -7z
-11 + -7z = 0

Solving
-11 + -7z = 0

Solving for variable 'z'.

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

Add '11' to each side of the equation.
-11 + 11 + -7z = 0 + 11

Combine like terms: -11 + 11 = 0
0 + -7z = 0 + 11
-7z = 0 + 11

Combine like terms: 0 + 11 = 11
-7z = 11

Divide each side by '-7'.
z = -1.571428571

Simplifying
z = -1.571428571

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