42=8j+13j

Solution for 42=8j+13j equation:

Simplifying
42 = 8j + 13j

Combine like terms: 8j + 13j = 21j
42 = 21j

Solving
42 = 21j

Solving for variable 'j'.

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

Add '-21j' to each side of the equation.
42 + -21j = 21j + -21j

Combine like terms: 21j + -21j = 0
42 + -21j = 0

Add '-42' to each side of the equation.
42 + -42 + -21j = 0 + -42

Combine like terms: 42 + -42 = 0
0 + -21j = 0 + -42
-21j = 0 + -42

Combine like terms: 0 + -42 = -42
-21j = -42

Divide each side by '-21'.
j = 2

Simplifying
j = 2