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anonymous
 one year ago
Solve the system of equations by substitution. What is the solution for x?
2x + y = 1
4x + 2y = −1
a. x = 0
b. x = 2
c. There is no x value as there is no solution.
d. x can be any value as there is an infinite number of solutions.
anonymous
 one year ago
Solve the system of equations by substitution. What is the solution for x? 2x + y = 1 4x + 2y = −1 a. x = 0 b. x = 2 c. There is no x value as there is no solution. d. x can be any value as there is an infinite number of solutions.

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0okay so basically you have to set on of the equations equal to y and then plug that value you get for y into the other equation

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So solve one of them them put the answer in the other equation?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0How would you solve the equation?

LynFran
 one year ago
Best ResponseYou've already chosen the best response.1eq.1 2x+y=1 eq.2 4x+2y=1 from eq.1 we solve for y so y=12x now sub y=12x in eq.2 so, 4x+2(12x)=1

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0okay lets pic the second equation 4x + 2y = 1 subtract the 4x 2y = 1  4x divide by 2 y = (1  4x)/2

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0if you use the first equation the x's cancel out so i didn't use it

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so now plug in y = (1  4x)/2 as the y for your fist equation 2x+y = 1

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so it would be 2x + (14x)/2=1 ?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0and know just solve for x

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0however im starting to think its d

LynFran
 one year ago
Best ResponseYou've already chosen the best response.1exactly the x cancels out which is true so there is an option for that...it will still cancel out ussing your way @Jdosio

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Thank you for the help it makes more sense how to solve it now.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0oh really... thats strange im getting 3/2 is it canceling out for you ?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So wouldnt it be d if it was canceling out?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0anyway depending on how you decide to go about it you get different values for x which leads me to believe that it is d

LynFran
 one year ago
Best ResponseYou've already chosen the best response.1i would like to think its C"

LynFran
 one year ago
Best ResponseYou've already chosen the best response.1because the x value cancels leaving 1/2=1 ...

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0But if the values get canceled out then wouldnt that mean there was just more then one solution

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0it was my understanding that if you could manage to get any x value then you could cancel out c

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i place my bets on d :p

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0But the equation wasnt set up like that

LynFran
 one year ago
Best ResponseYou've already chosen the best response.1http://www.charleston.k12.il.us/cms/Teachers/math/PreAlgebra/paunit5/L54.pdf

LynFran
 one year ago
Best ResponseYou've already chosen the best response.1but let me know if it was D...
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