(4z-7)(1-z)=0

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Solution for (4z-7)(1-z)=0 equation:


Simplifying
(4z + -7)(1 + -1z) = 0

Reorder the terms:
(-7 + 4z)(1 + -1z) = 0

Multiply (-7 + 4z) * (1 + -1z)
(-7(1 + -1z) + 4z * (1 + -1z)) = 0
((1 * -7 + -1z * -7) + 4z * (1 + -1z)) = 0
((-7 + 7z) + 4z * (1 + -1z)) = 0
(-7 + 7z + (1 * 4z + -1z * 4z)) = 0
(-7 + 7z + (4z + -4z2)) = 0

Combine like terms: 7z + 4z = 11z
(-7 + 11z + -4z2) = 0

Solving
-7 + 11z + -4z2 = 0

Solving for variable 'z'.

Factor a trinomial.
(-7 + 4z)(1 + -1z) = 0

Subproblem 1

Set the factor '(-7 + 4z)' equal to zero and attempt to solve: Simplifying -7 + 4z = 0 Solving -7 + 4z = 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 + 4z = 0 + 7 Combine like terms: -7 + 7 = 0 0 + 4z = 0 + 7 4z = 0 + 7 Combine like terms: 0 + 7 = 7 4z = 7 Divide each side by '4'. z = 1.75 Simplifying z = 1.75

Subproblem 2

Set the factor '(1 + -1z)' equal to zero and attempt to solve: Simplifying 1 + -1z = 0 Solving 1 + -1z = 0 Move all terms containing z to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -1z = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -1z = 0 + -1 -1z = 0 + -1 Combine like terms: 0 + -1 = -1 -1z = -1 Divide each side by '-1'. z = 1 Simplifying z = 1

Solution

z = {1.75, 1}

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