4(1-2j)=7(2j+10)

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Solution for 4(1-2j)=7(2j+10) equation:


Simplifying
4(1 + -2j) = 7(2j + 10)
(1 * 4 + -2j * 4) = 7(2j + 10)
(4 + -8j) = 7(2j + 10)

Reorder the terms:
4 + -8j = 7(10 + 2j)
4 + -8j = (10 * 7 + 2j * 7)
4 + -8j = (70 + 14j)

Solving
4 + -8j = 70 + 14j

Solving for variable 'j'.

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

Add '-14j' to each side of the equation.
4 + -8j + -14j = 70 + 14j + -14j

Combine like terms: -8j + -14j = -22j
4 + -22j = 70 + 14j + -14j

Combine like terms: 14j + -14j = 0
4 + -22j = 70 + 0
4 + -22j = 70

Add '-4' to each side of the equation.
4 + -4 + -22j = 70 + -4

Combine like terms: 4 + -4 = 0
0 + -22j = 70 + -4
-22j = 70 + -4

Combine like terms: 70 + -4 = 66
-22j = 66

Divide each side by '-22'.
j = -3

Simplifying
j = -3

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