15(x-7)/20(x-7)

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Solution for 15(x-7)/20(x-7) equation: 


x in (-oo:+oo)

((15*(x-7))/20)*(x-7) = 0

(15*(x-7)^2)/20 = 0

( 15 )

15 = 0

x belongs to the empty set

( x-7 )

x-7 = 0 // + 7

x = 7

x in { 7, 7 }

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