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

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Answer 1 · 2016-07-08T21:51:37

#x = 30/7#

Cross multiply.

#3/x = 7/10#

#3times10 = 7timesx#

#30 = 7x#

#x = 7/30#

Answer 2 · 2016-07-08T21:54:14

#x = 30 / 7#

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#