4(7-j)=18-j

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Solution for 4(7-j)=18-j equation:


Simplifying
4(7 + -1j) = 18 + -1j
(7 * 4 + -1j * 4) = 18 + -1j
(28 + -4j) = 18 + -1j

Solving
28 + -4j = 18 + -1j

Solving for variable 'j'.

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

Add 'j' to each side of the equation.
28 + -4j + j = 18 + -1j + j

Combine like terms: -4j + j = -3j
28 + -3j = 18 + -1j + j

Combine like terms: -1j + j = 0
28 + -3j = 18 + 0
28 + -3j = 18

Add '-28' to each side of the equation.
28 + -28 + -3j = 18 + -28

Combine like terms: 28 + -28 = 0
0 + -3j = 18 + -28
-3j = 18 + -28

Combine like terms: 18 + -28 = -10
-3j = -10

Divide each side by '-3'.
j = 3.333333333

Simplifying
j = 3.333333333

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