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 2 years ago
To solve this system using the addition method, you would need to multiply the first equation by what number in order for the y's to add out?
3x  y = 3
2x + 2y = 6
 2 years ago
To solve this system using the addition method, you would need to multiply the first equation by what number in order for the y's to add out? 3x  y = 3 2x + 2y = 6

This Question is Closed

joshi
 2 years ago
Best ResponseYou've already chosen the best response.0well you need the same coefficient for y if you want them to cancel. in the first one the coefficient of y is 1. and in the second it's 2. so 1 x ? = 2

radar
 2 years ago
Best ResponseYou've already chosen the best response.2You would the first equation by 2, getting 6x 2y = 6. when added to second equation the y's would "add out" or their sum is 0.

radar
 2 years ago
Best ResponseYou've already chosen the best response.2I left out the word multiply, which goes in the first sentence between " would * the"

n1995
 2 years ago
Best ResponseYou've already chosen the best response.0so what would you multiply the eqaution by?

Dido525
 2 years ago
Best ResponseYou've already chosen the best response.0@hero. Don't just post the answer next time unless you absolutely need to...

Hero
 2 years ago
Best ResponseYou've already chosen the best response.0I thought I was checking someone's answer. @Falkqwer misled me

radar
 2 years ago
Best ResponseYou've already chosen the best response.2As I have previously posted, if you want to eliminate the y's, multiply the first equation by 2. this gives you: 6x 2y = 6 Now add the 2nd equation 2x+2y =6  4x = 12 x=3

Hero
 2 years ago
Best ResponseYou've already chosen the best response.0There can only be one right answer

Falkqwer
 2 years ago
Best ResponseYou've already chosen the best response.0@radar is right cause your supposed to Solve it using the addition method.

radar
 2 years ago
Best ResponseYou've already chosen the best response.2Substituting for x in the 2nd equation getting 2(3) + 2y = 6 6 +2y = 6 2y= 12 y=6 x=3, y=6 To be sure check them out

Hero
 2 years ago
Best ResponseYou've already chosen the best response.0I found my mistake. Wha ta shame

radar
 2 years ago
Best ResponseYou've already chosen the best response.2Do we need to verify? Did you get (3,6) @Hero

Hero
 2 years ago
Best ResponseYou've already chosen the best response.0@radar, what is it about "I found my MISTAKE" did you not understand?

radar
 2 years ago
Best ResponseYou've already chosen the best response.2It never hurts to verify substituting 3 for x, 6 for y 3xy=3 or 3(3)6=3 96=3 3=3 first one checks! 2x+2y=6 2(3)+2(6)=6 6 +12 = 6 6=6 checks

Hero
 2 years ago
Best ResponseYou've already chosen the best response.0No need to persist. Be happy that you provided the right solution and move on.

radar
 2 years ago
Best ResponseYou've already chosen the best response.2@Hero, just wanted to verify my answer, so I was simply asking if you got the same (after your error discovery.

Hero
 2 years ago
Best ResponseYou've already chosen the best response.0When I said I found my mistake, that implies that I acknowledge your correct answer. Furthermore I gave you a medal. As I said, no need to persist beyond that.
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