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kiaracarreathers kiaracarreathers
  • 13-01-2016
  • Mathematics
Answered

What is the value of s in the equation 3r = 10 + 5s, when r = 10

Verified Answer :

Cortes33
Cortes33 Cortes33
  • 13-01-2016


just substitute the value of r in the equation;

3r = 10 + 5s

3(10) = 10 + 5s

30 =  10 + 5s (next combine like terms)

30 - 10 = 10 -10 + 5s  (subtracted 10 on both sides)

20  =  5s

20 ÷ 5 = s (did the inverse operation)

4 = s   or   s = 4

Answer Link
Billymkhoi
Billymkhoi Billymkhoi
  • 13-01-2016

3r= 10+ 5s

When r= 10:
310= 10+ 5s
⇒ 5s= 310 -10
⇒ 5s= 30-10
⇒ 5s= 20
⇒ s= 20/5
⇒ s= 4

The final answer is s=4~

Answer Link

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