7j-4(j-3)=3(7+2j)

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Solution for 7j-4(j-3)=3(7+2j) equation:


Simplifying
7j + -4(j + -3) = 3(7 + 2j)

Reorder the terms:
7j + -4(-3 + j) = 3(7 + 2j)
7j + (-3 * -4 + j * -4) = 3(7 + 2j)
7j + (12 + -4j) = 3(7 + 2j)

Reorder the terms:
12 + 7j + -4j = 3(7 + 2j)

Combine like terms: 7j + -4j = 3j
12 + 3j = 3(7 + 2j)
12 + 3j = (7 * 3 + 2j * 3)
12 + 3j = (21 + 6j)

Solving
12 + 3j = 21 + 6j

Solving for variable 'j'.

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

Add '-6j' to each side of the equation.
12 + 3j + -6j = 21 + 6j + -6j

Combine like terms: 3j + -6j = -3j
12 + -3j = 21 + 6j + -6j

Combine like terms: 6j + -6j = 0
12 + -3j = 21 + 0
12 + -3j = 21

Add '-12' to each side of the equation.
12 + -12 + -3j = 21 + -12

Combine like terms: 12 + -12 = 0
0 + -3j = 21 + -12
-3j = 21 + -12

Combine like terms: 21 + -12 = 9
-3j = 9

Divide each side by '-3'.
j = -3

Simplifying
j = -3

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