How do you solve #\frac { 3} { 4} = \frac { n - 2} { 2}#?

1 Answer
RedRobin9688 · seol
Jun 26, 2018

#n=7/2#

Explanation:

#3/4=(n-2)/2#

  • Multiply both sides by 2
    #3/4*color(red)2=(n-2)/2*color(red)2#
    #3/4*color(red)2=(n-2)/cancel(2)*cancel(color(red)2)#
  • #3/2=n-2#
    #3/2+color(red)2=n-2+color(red)2#
    #3/2+color(red)(4/2)=n-cancel(2)+cancel(color(red)2)#

#7/2=n#

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