3x/15-9/15=18/12

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Solution for 3x/15-9/15=18/12 equation: 


x in (-oo:+oo)

(3*x)/15-(9/15) = 18/12 // - 18/12

(3*x)/15-(9/15)-(18/12) = 0

(3*x)/15-3/5-3/2 = 0

1/5*x-21/10 = 0 // + 21/10

1/5*x = 21/10 // : 1/5

x = 21/10/1/5

x = 21/2

x = 21/2

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