1/3(9x-12)=1/5(20x-15)

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Solution for 1/3(9x-12)=1/5(20x-15) equation: 


x in (-oo:+oo)

(1/3)*(9*x-12) = (1/5)*(20*x-15) // - (1/5)*(20*x-15)

(1/3)*(9*x-12)-((1/5)*(20*x-15)) = 0

(1/3)*(9*x-12)+(-1/5)*(20*x-15) = 0

1/3*(9*x-12)-1/5*(20*x-15) = 0

1/3*(9*x-12)-1/5*(20*x-15) = 0

-x-1 = 0

-x-1 = 0

-x-1 = 0 // + 1

-x = 1 // * -1

x = -1

x = -1

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