21=7j

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Solution for 21=7j equation:


Simplifying
21 = 7j

Solving
21 = 7j

Solving for variable 'j'.

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

Add '-7j' to each side of the equation.
21 + -7j = 7j + -7j

Combine like terms: 7j + -7j = 0
21 + -7j = 0

Add '-21' to each side of the equation.
21 + -21 + -7j = 0 + -21

Combine like terms: 21 + -21 = 0
0 + -7j = 0 + -21
-7j = 0 + -21

Combine like terms: 0 + -21 = -21
-7j = -21

Divide each side by '-7'.
j = 3

Simplifying
j = 3

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