2j/3=3j-21

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Solution for 2j/3=3j-21 equation: 


j in (-oo:+oo)

(2*j)/3 = 3*j-21 // - 3*j-21

(2*j)/3-(3*j)+21 = 0

(2*j)/3-3*j+21 = 0

21-7/3*j = 0 // - 21

-7/3*j = -21 // : -7/3

j = -21/(-7/3)

j = 9

j = 9

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