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DragonFlame
Group Title
Solve, using the substitution method.
y – 2x = 8
16 + 4x = 2y
 10 months ago
 10 months ago
DragonFlame Group Title
Solve, using the substitution method. y – 2x = 8 16 + 4x = 2y
 10 months ago
 10 months ago

This Question is Closed

hartnn Group TitleBest ResponseYou've already chosen the best response.1
y2x = 8 add 2x on both sides, what u get ?
 10 months ago

DragonFlame Group TitleBest ResponseYou've already chosen the best response.1
y=9+2y
 10 months ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
now plug in y= 8+2x in 2nd equation
 10 months ago

DragonFlame Group TitleBest ResponseYou've already chosen the best response.1
I thought of doing 2x=8y
 10 months ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
that can work, but things will get complicated soon.
 10 months ago

DragonFlame Group TitleBest ResponseYou've already chosen the best response.1
16+4x=2(8+2x)
 10 months ago

DragonFlame Group TitleBest ResponseYou've already chosen the best response.1
I see... I will use the way u told me than
 10 months ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
yes, simplify 2(8+2x)
 10 months ago

DragonFlame Group TitleBest ResponseYou've already chosen the best response.1
16+4x=16+4x
 10 months ago

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

hartnn Group TitleBest ResponseYou've already chosen the best response.1
correct. now think logically, when is that true
 10 months ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
not impossible its like 0=0
 10 months ago

DragonFlame Group TitleBest ResponseYou've already chosen the best response.1
S0 infinite number of solutions
 10 months ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
you take any value of x or y 16+4x will always be = 16+4x so, yes, infinite solutions :)
 10 months ago

DragonFlame Group TitleBest ResponseYou've already chosen the best response.1
yay! Thanks so much
 10 months ago

mathmale Group TitleBest ResponseYou've already chosen the best response.0
Note how one of the given equations is a multiple of the other given equation. That's all the info you need to decide "infinitely many solutions."
 10 months ago

DragonFlame Group TitleBest ResponseYou've already chosen the best response.1
I see, Thanks :)
 10 months ago
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