How do you solve #3/x=7/10#?

2 Answers
Jul 8, 2016

Answer:

#x = 30/7#

Explanation:

Cross multiply.

#3/x = 7/10#

#3times10 = 7timesx#

#30 = 7x#

#x = 7/30#

Jul 8, 2016

Answer:

#x = 30 / 7#

Explanation:

The first step we need to take to solve the problem is get rid of the fractions in this case we can simply cross multiply:

#3/x = 7/10#

So multiply the left numerator by the right denominator, then the left denominator by the right numerator.

#30 = 7x#

Simply solve like a standard linear equation:

#7x = 30#
#x = 30 / 7#