Sara says, "If you subtract 17 from my number and multiply the difference by - 6, the result is - 36." What is Sara's number?
Sara's number is

is there any attachment? what are the equations?

step-by-step explanation:

for the free

hello from mrbilldoesmath!

answer:

(7 x + 6 y) (49 x^2 - 42 x y + 36 y^2)

discussion:

the trick is to recognize that 343 = 7^3 and 216 = 6^3 and, in general,

a^3 + b^3 =   (a + b) (a^2 - a b + b^2).

in our case

343x^3+216y^3   =   (7x)^3 + (6y)^3

so take a = 7x and b = 6y in the above equation to get the answer.

you,

mrb

-1   1/6.   you dont subtract the denominators

step-by-step explanation: