Question

Given that r cannot equal 0 and r=5w=7a, find the value of r-w in terms of a

Answer 1

where are you stuck?

Answer 2

I don't know how to solve it

Answer 3

r= 7a ok?

Answer 4

5w = 7a
divide both sides by 5 you get
\(w= \dfrac{7}{5}a\) right?

Answer 5

now just take r -w
I rewrite them:
\(r =7a\\w=\dfrac{7}{5}a\\---------------\\r-w=???\)

Answer 6

Thank you
!

Answer 7

:)