Question

Find the value of x:

7 a 7 x
if — = —, then — = —
2 b a b

Answer 1

@geerky42

Answer 2

Start by doing cross-multiply.

\(7b = 2a\)

Now you can divide both sides by a then b, or other way. Order doesn't matter.

You should have \(\dfrac{7}{a} = \dfrac{2}{b}\)

So we can see that \(\boxed{x=2}\)