21-j=-87-2j

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Solution for 21-j=-87-2j equation:


Simplifying
21 + -1j = -87 + -2j

Solving
21 + -1j = -87 + -2j

Solving for variable 'j'.

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

Add '2j' to each side of the equation.
21 + -1j + 2j = -87 + -2j + 2j

Combine like terms: -1j + 2j = 1j
21 + 1j = -87 + -2j + 2j

Combine like terms: -2j + 2j = 0
21 + 1j = -87 + 0
21 + 1j = -87

Add '-21' to each side of the equation.
21 + -21 + 1j = -87 + -21

Combine like terms: 21 + -21 = 0
0 + 1j = -87 + -21
1j = -87 + -21

Combine like terms: -87 + -21 = -108
1j = -108

Divide each side by '1'.
j = -108

Simplifying
j = -108

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