If y = -22 and x = 5, find x when y= 16.5

Answer 1

When y = -22 and x = 5, you can find x when y = 16.5 by setting two fractions equal to one another.

-22 16.5

------ = --------

5 x

If you cross multiply by doing -22 times x and 5 times 16.5 you would get ...

-22(x) = 82.5

Now you can divide -22 on both sides leaving x = -3.75

Answer 2

-22/5 = 16.5/x

Cross multiply!

-22x = 16.5(5)

-22x = 82.5

x = -3.75