9j(j-7)=0

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Solution for 9j(j-7)=0 equation: 


Simplifying
9j(j + -7) = 0

Reorder the terms:
9j(-7 + j) = 0
(-7 * 9j + j * 9j) = 0
(-63j + 9j2) = 0

Solving
-63j + 9j2 = 0

Solving for variable 'j'.

Factor out the Greatest Common Factor (GCF), '9j'.
9j(-7 + j) = 0

Ignore the factor 9.

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

Simplifying
j = 0

Solving
j = 0

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

Simplifying
j = 0

Subproblem 2
Set the factor '(-7 + j)' equal to zero and attempt to solve:

Simplifying
-7 + j = 0

Solving
-7 + j = 0

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

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

Combine like terms: -7 + 7 = 0
0 + j = 0 + 7
j = 0 + 7

Combine like terms: 0 + 7 = 7
j = 7

Simplifying
j = 7
Solution
j = {0, 7}

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