anonymous
  • anonymous
Help me out please?! http://gyazo.com/4fd3bf61fb5bf421db38e059342c429e
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
first find value of a and calculate 4a-1
kymber
  • kymber
You just solve for a and plug it into 4a-1! :D |dw:1333250466984:dw|
Mertsj
  • Mertsj
\[3a-9=6\] \[3a-9+9=6+9\] \[3a=15\] \[\frac{3a}{3}=\frac{15}{3}\] \[a=5\] \[4a-1=4(5)-1=20-1=19\]

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anonymous
  • anonymous
If you wanted to be weird you could also transform 3a - 9 = 6 to look like 4a - 1 and the right hand side would be your answer, but the way @SUROJ suggested is definitely simpler. 3a - 9 = 6 Times (4/3) to everything. 4a - 12 = 8 Add 11. 4a - 1 = 19
amistre64
  • amistre64
good way to think outside the box :)
anonymous
  • anonymous
Thanks
anonymous
  • anonymous
(assuming you meant me since you just gave me a medal)
amistre64
  • amistre64
... i know nothing!!

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