How do you solve #3.2x = 22.4#?

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Answer 1 · 2018-06-12T12:31:56

#x=7#

#3.2x=22.4#

#(3.2x)/3.2=22.4/3.2#

#x=7#

Answer 2 · 2018-06-12T12:33:57

#x=7#

You only need to divide both sides by #3.2#: the expression becomes

#\frac{3.2x}{3.2} = \frac{22.4}{3.2}#

in the left hand side you can simply the fraction, since you're basically multiplying and dividing by the same number:

#\frac{cancel(3.2)x}{cancel(3.2)} = \frac{22.4}{3.2}#

and thus

#x = \frac{22.4}{3.2} = 7#