How do you solve \frac { 15} { 27} = 5/x?

2 Answers
Jan 9, 2018

x=9

Explanation:

15/27=5/x

<=> Cross Multiply

15x=5(27)

<=> Divide Both Sides by 15

x=(5(27))/15

then since 15=5(3) we can say

x=(5(27))/(5(3))=27/3=9

Jan 9, 2018

x = 9

Explanation:

You first multiply both numbers so that the numerators are the same, so you multiply 5/x by 3 to turn the equation into 15/27 = 15/(3x). Now you can remove the 15's from the equation to get 27 = 3x. You divide both sides by 3 to get 9 = x. Thus, x is 9.