GabbiL
GabbiL GabbiL
  • 06-11-2018
  • Mathematics
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What is the value of n?

What is the value of n class=

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  • 14-11-2018

the theory is ab=cd where the lines across form eachother are a and b and the other two lines are a and d

a=7

b=n+4

c=5

d=n+8

7(n+4)=5(n+8)

7n+28=5n+40

2n+28=40

2n=12

n=6

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