7(4-9j)=

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Solution for 7(4-9j)= equation: 


Simplifying
7(4 + -9j) = 0
(4 * 7 + -9j * 7) = 0
(28 + -63j) = 0

Solving
28 + -63j = 0

Solving for variable 'j'.

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

Add '-28' to each side of the equation.
28 + -28 + -63j = 0 + -28

Combine like terms: 28 + -28 = 0
0 + -63j = 0 + -28
-63j = 0 + -28

Combine like terms: 0 + -28 = -28
-63j = -28

Divide each side by '-63'.
j = 0.4444444444

Simplifying
j = 0.4444444444

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