Question

simplify the equation 3x / 21(x+y)

Answer 1

fill in the blank

21 = 3 times ______

Answer 2

7 i know but the only problem is the x and y

Answer 3

so that means

\[\Large \frac{3x}{21(x+y)}\]
\[\Large \frac{3*x}{3*7(x+y)}\]

Answer 4

what term do you see cancelling?

Answer 5

the 3 thats is
so would it be 1/7(x+y)

Answer 6

good

\[\Large \frac{3x}{21(x+y)}\]
\[\Large \frac{3*x}{3*7(x+y)}\]
\[\Large \frac{\cancel{3}*x}{\cancel{3}*7(x+y)}\]
\[\Large \frac{x}{7(x+y)}\]

Answer 7

thank you

Answer 8

You can stop there or you can optionally distribute

to go from

\[\Large \frac{x}{7(x+y)}\]

to

\[\Large \frac{x}{7x+7y}\]

Answer 9

yw