(6-z)(5z-7)=0

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Solution for (6-z)(5z-7)=0 equation:


Simplifying
(6 + -1z)(5z + -7) = 0

Reorder the terms:
(6 + -1z)(-7 + 5z) = 0

Multiply (6 + -1z) * (-7 + 5z)
(6(-7 + 5z) + -1z * (-7 + 5z)) = 0
((-7 * 6 + 5z * 6) + -1z * (-7 + 5z)) = 0
((-42 + 30z) + -1z * (-7 + 5z)) = 0
(-42 + 30z + (-7 * -1z + 5z * -1z)) = 0
(-42 + 30z + (7z + -5z2)) = 0

Combine like terms: 30z + 7z = 37z
(-42 + 37z + -5z2) = 0

Solving
-42 + 37z + -5z2 = 0

Solving for variable 'z'.

Factor a trinomial.
(-6 + z)(7 + -5z) = 0

Subproblem 1

Set the factor '(-6 + z)' equal to zero and attempt to solve: Simplifying -6 + z = 0 Solving -6 + z = 0 Move all terms containing z to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + z = 0 + 6 Combine like terms: -6 + 6 = 0 0 + z = 0 + 6 z = 0 + 6 Combine like terms: 0 + 6 = 6 z = 6 Simplifying z = 6

Subproblem 2

Set the factor '(7 + -5z)' equal to zero and attempt to solve: Simplifying 7 + -5z = 0 Solving 7 + -5z = 0 Move all terms containing z to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -5z = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -5z = 0 + -7 -5z = 0 + -7 Combine like terms: 0 + -7 = -7 -5z = -7 Divide each side by '-5'. z = 1.4 Simplifying z = 1.4

Solution

z = {6, 1.4}

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