j^2=0.64

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Solution for j^2=0.64 equation: 


Simplifying
j2 = 0.64

Solving
j2 = 0.64

Solving for variable 'j'.

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

Simplifying
j2 = 0.64

Take the square root of each side:
j = {-0.8, 0.8}

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