8=j^2+4

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Solution for 8=j^2+4 equation: 


Simplifying
8 = j2 + 4

Reorder the terms:
8 = 4 + j2

Solving
8 = 4 + j2

Solving for variable 'j'.

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

Add '-1j2' to each side of the equation.
8 + -1j2 = 4 + j2 + -1j2

Combine like terms: j2 + -1j2 = 0
8 + -1j2 = 4 + 0
8 + -1j2 = 4

Add '-8' to each side of the equation.
8 + -8 + -1j2 = 4 + -8

Combine like terms: 8 + -8 = 0
0 + -1j2 = 4 + -8
-1j2 = 4 + -8

Combine like terms: 4 + -8 = -4
-1j2 = -4

Divide each side by '-1'.
j2 = 4

Simplifying
j2 = 4

Take the square root of each side:
j = {-2, 2}

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