24-11-2014
Mathematics

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how do i solve step by step s+2 1/2s+20=48 ?

Answer :

24-11-2014

[tex]s+2\frac{1}{2}s+20=48\\\\ 3,5s+20=48\ \ \ \ | subtract\ 20\\\\ 3,5s=28\ \ \ \ | divide\ by\ 3,5\\\\ s=8\\\\ Solution\ is\ s=8.[/tex]

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Аноним Аноним

24-11-2014

s+(2+1/2)s+20=48

2/2s+5/2s=48-20

7/2s=28

7s=28*2=2(20+8)=40+16

7s=56

s=56/7

s=8

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