The denominator of a fraction is three more than twice the numerator. If both numerator and denominator are decreased by seven, the simplified result is 7divided by 19. Find the original fraction. (Do NOT simplify.)

answer: i don't understand it

step-by-step explanation: sorry

answer: 414,377,008

step-by-step explanation:

just multiply it

hello from mrbilldoesmath!

answer:

25x^2 + 90x + 84

discussion:

mn(x) = m(n(x)) = m( 5x + 9) =

(5x + 9)^2 + 3 =>

25x^2 + 90x + 9^2 + 3 =

25x^2 + 90x + 84                 (as 9^2 = 9*9 = 81)

which is the second choice

regards,  

mrb

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