7z(3z+5)=

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Solution for 7z(3z+5)= equation: 


Simplifying
7z(3z + 5) = 0

Reorder the terms:
7z(5 + 3z) = 0
(5 * 7z + 3z * 7z) = 0
(35z + 21z2) = 0

Solving
35z + 21z2 = 0

Solving for variable 'z'.

Factor out the Greatest Common Factor (GCF), '7z'.
7z(5 + 3z) = 0

Ignore the factor 7.

Subproblem 1
Set the factor 'z' equal to zero and attempt to solve:

Simplifying
z = 0

Solving
z = 0

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

Simplifying
z = 0

Subproblem 2
Set the factor '(5 + 3z)' equal to zero and attempt to solve:

Simplifying
5 + 3z = 0

Solving
5 + 3z = 0

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

Add '-5' to each side of the equation.
5 + -5 + 3z = 0 + -5

Combine like terms: 5 + -5 = 0
0 + 3z = 0 + -5
3z = 0 + -5

Combine like terms: 0 + -5 = -5
3z = -5

Divide each side by '3'.
z = -1.666666667

Simplifying
z = -1.666666667
Solution
z = {0, -1.666666667}

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