aspynjo aspynjo
  • 30-09-2015
  • Mathematics
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2n-7/3 = 15 solve for n

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leumitica
leumitica leumitica
  • 30-09-2015
[tex]2n- \frac{7}{3} =15 [/tex] 
[tex]2n- \frac{7}{3} =15 [/tex]  common denominator is 3
[tex]3(2n- \frac{7}{3} )=3*15 [/tex] distributhing  3 through parantheses
[tex]3*2n- \frac{3*7}{3}=3*15[/tex]
[tex]3*2n-7=3*15[/tex]
[tex]6n-7=45 [/tex]   add7
[tex]6n=45+7[/tex]
[tex]6n=52 [/tex] divide by 6
[tex]n= \frac{52}{6} [/tex] simplify
[tex]n=8 \frac{2}{3}[/tex] ⇒ [tex] \frac{26}{3} [/tex]
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