How do you solve #3.2x - 4= 12#?

1 Answer
Alan P.
Oct 27, 2016

#color(green)(x=5)#

Explanation:

Given
#color(white)("XXX")3.2x-4=120#

I find it easier if there are no fractions, so lets multiply everything by #10#
#color(white)("XXX")32x-40=120#

Add #40# to both sides
#color(white)("XXX")32x=160#

Divide both sides by #32#
#color(white)("XXX")x=5#

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