How do you solve #0.25n + 4= 0.4( n + 4)#?

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Answer 1 · 2017-01-06T11:39:25

#n=16#

Don't like decimals so lets get rid of them!

Multiply both sides by 100

#" "100(0.25n+4)=100xx0.4(n+4)#

#" "25n+400=40(n+4)#

#" "25n+400=40n+160#

Subtract #25n# from both sides

#" "400=15n+160#

Subtract 160 from both sides

#" "240=15n#

Divide both sides by 15

#" "16=n#

As per convention of format we have: #" "n=16#