Question

how do you get the ? in (3x-7/12-3x) (3x-12/?)=1

Answer 1

\[\frac{3x-7}{12-3x} \times \frac{3x-12}{?}=\frac{3x-7}{12-3x} \times \frac{-1(12-3x)}{?}=\frac{3x-7}{\cancel {12-3x}}\times \frac{-1\cancel{(12-3x)}}{?}=\frac{7x-3}{?}=1.\]

Answer 2

\[\implies \frac{7-3x}{?}=1 \implies ?=\frac{7-3x}{1}=7-3x.\]

Answer 3

Any doubt?

Answer 4

why did it become 7-3x?

Answer 5

Becoz......
\[(3x-7)\times (-1)= (7-3x).\]

Answer 6

owwww

Answer 7

now tell me if any doubt.

Answer 8

thanks--i have no doubt,,thanks again--you are a genius

Answer 9

I omg ---no genius:)
yw:)