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overtonka
Group Title
Solve each system of equations by substitution
3v3x=15
5v+x=29
 one year ago
 one year ago
overtonka Group Title
Solve each system of equations by substitution 3v3x=15 5v+x=29
 one year ago
 one year ago

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tkhunny Group TitleBest ResponseYou've already chosen the best response.2
Divide the first by 3 and something magic may pop out.
 one year ago

skullpatrol Group TitleBest ResponseYou've already chosen the best response.0
I tried to teach you this yesterday and you refused to learn?
 one year ago

overtonka Group TitleBest ResponseYou've already chosen the best response.0
I did not refuse I just didn't get it
 one year ago

tkhunny Group TitleBest ResponseYou've already chosen the best response.2
Well, @overtonka, I think @skullpatrol would be delighted to see you make a better effort, today. Divide the first equation by 3 and show what you get.
 one year ago

overtonka Group TitleBest ResponseYou've already chosen the best response.0
1v1x=5
 one year ago

tkhunny Group TitleBest ResponseYou've already chosen the best response.2
Super! Any suggestion what we should do next? Hint: I didn't have you divide by 3 just for fun.
 one year ago

overtonka Group TitleBest ResponseYou've already chosen the best response.0
solve for one of the variables?
 one year ago

overtonka Group TitleBest ResponseYou've already chosen the best response.0
so 1v=51x?
 one year ago

skullpatrol Group TitleBest ResponseYou've already chosen the best response.0
Now what (hint: use the name of the method)
 one year ago

tkhunny Group TitleBest ResponseYou've already chosen the best response.2
Since we are using substitition, that would be the things to do. Please abandon those sillylooking '1's. We don't usually write those unless we are trying to make a point.
 one year ago

overtonka Group TitleBest ResponseYou've already chosen the best response.0
ok so vx=5?
 one year ago

tkhunny Group TitleBest ResponseYou've already chosen the best response.2
No, why did you UNsolve? Please "solve for one of the variables".
 one year ago

skullpatrol Group TitleBest ResponseYou've already chosen the best response.0
Correct.
 one year ago

overtonka Group TitleBest ResponseYou've already chosen the best response.0
so plug that in to the other equation?
 one year ago

skullpatrol Group TitleBest ResponseYou've already chosen the best response.0
Substitution principle: An expression maybe replaced by another expression that has the same value If $$a=b$$then b maybe substituted for a in any expression.
 one year ago

skullpatrol Group TitleBest ResponseYou've already chosen the best response.0
dw:1362010398136:dw
 one year ago

tkhunny Group TitleBest ResponseYou've already chosen the best response.2
It's your big chance. Let's see the substitution!
 one year ago
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