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DragonFlame
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Solve, using the substitution method.
4x + 2y = 11
x – 2 = – 2y
 10 months ago
 10 months ago
DragonFlame Group Title
Solve, using the substitution method. 4x + 2y = 11 x – 2 = – 2y
 10 months ago
 10 months ago

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DragonFlame Group TitleBest ResponseYou've already chosen the best response.1
Is \[2y=114x\] Right?
 10 months ago

Potatoes.ramu Group TitleBest ResponseYou've already chosen the best response.0
Multiply the second equation by 2
 10 months ago

Potatoes.ramu Group TitleBest ResponseYou've already chosen the best response.0
and then subtract it from the first
 10 months ago

DragonFlame Group TitleBest ResponseYou've already chosen the best response.1
Ok, so \[2x4=4y?\]
 10 months ago

Potatoes.ramu Group TitleBest ResponseYou've already chosen the best response.0
Wait.. actually multiply the second equation by 4. That way you eliminate the x term
 10 months ago

DragonFlame Group TitleBest ResponseYou've already chosen the best response.1
\[4x8=8y\]
 10 months ago

DragonFlame Group TitleBest ResponseYou've already chosen the best response.1
How would I subtract it from the first equation? X becomes eliminated than what?
 10 months ago

DragonFlame Group TitleBest ResponseYou've already chosen the best response.1
@hartnn
 10 months ago

Potatoes.ramu Group TitleBest ResponseYou've already chosen the best response.0
When x is eliminated, you can find the y term
 10 months ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
substitution method. (not elimination method) 4x + 2y = 11 x – 2 = – 2y (find 'x' from here, by adding 2 on both sides)
 10 months ago

Potatoes.ramu Group TitleBest ResponseYou've already chosen the best response.0
Once you find the y term, you can substitute it in any of the above equations, and then you get x.
 10 months ago

DragonFlame Group TitleBest ResponseYou've already chosen the best response.1
So 6y=11?
 10 months ago

Potatoes.ramu Group TitleBest ResponseYou've already chosen the best response.0
@hartnn you'll still have the y term
 10 months ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
x – 2 = – 2y x = 22y plug this in 1st equation 4(22y) +2y =11 simplify and get y
 10 months ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
ask if you don't get that ^
 10 months ago

Potatoes.ramu Group TitleBest ResponseYou've already chosen the best response.0
@hartnn , but can't you solve it using elimination as well?
 10 months ago

DragonFlame Group TitleBest ResponseYou've already chosen the best response.1
88y+2y=11
 10 months ago

DragonFlame Group TitleBest ResponseYou've already chosen the best response.1
10y=3?
 10 months ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
the system can be solved by elimination method, but since the question specifically asks for substitution, we need to use substitution
 10 months ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
8y +2y = ... ?
 10 months ago

DragonFlame Group TitleBest ResponseYou've already chosen the best response.1
86y=11 6y=3 y=1/2
 10 months ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
now find x
 10 months ago

DragonFlame Group TitleBest ResponseYou've already chosen the best response.1
Okkkkk :)
 10 months ago

DragonFlame Group TitleBest ResponseYou've already chosen the best response.1
So its this bit.ly/1ewUix3
 10 months ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
\(\huge \checkmark \)
 10 months ago

DragonFlame Group TitleBest ResponseYou've already chosen the best response.1
(3,1/2) Right?
 10 months ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
yes, it is correct.
 10 months ago

DragonFlame Group TitleBest ResponseYou've already chosen the best response.1
Thanks! Should I give the medal to potatoes or you? He tried... but you helped
 10 months ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
i'm not here for medals. you understand thats my medal :)
 10 months ago

Potatoes.ramu Group TitleBest ResponseYou've already chosen the best response.0
Also.. I'm a she :) And my method was wrong for this problem! Sorry!
 10 months ago
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