anonymous
  • anonymous
10x-5y=-20 7x-5y=-26
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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Vickyisthesmartone123
  • Vickyisthesmartone123
I know the answer hold on...
Vickyisthesmartone123
  • Vickyisthesmartone123
(2,8) That is the answer!:)
anonymous
  • anonymous
Try and use substitution. Here is an example: The substitution method is a method that is based off a rule of algebra. Basically, it's similar to using a formula. You substitute values into the formula. The same thing applies here. Let's say we have the following system: y = 2x + 3 5x + 2y = 24 Before we turn over to elimination, let's try using our new friend substitution. It clearly says that y is equal to 2x + 3. This means that we can substitute 2x + 3 in for y. 5x + 2y = 24 5x + 2(2x + 3) = 24 5x + 4x + 6 = 24 Now that we have eliminated a variable, we can solve the system. 9x + 6 = 24 9x = 18 x = 2 Now let's plug this back into one of the equations. I prefer to plug it into the equation that has a variable isolated. y = 2x + 3 y = 2(2) + 3 y = 4 + 3 y = 7 Therefore, the solution set is (x, y) = (2, 7).

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Vickyisthesmartone123
  • Vickyisthesmartone123
No it's not it's (2,8)
anonymous
  • anonymous
See if you understand substitution, and try and use it on your own equations :)
Vickyisthesmartone123
  • Vickyisthesmartone123
You copied and pasted that im not dumb
Vickyisthesmartone123
  • Vickyisthesmartone123
From another person
Vickyisthesmartone123
  • Vickyisthesmartone123
You can't type that fast
tygrr321
  • tygrr321
OOOHHHHHH the suspense
anonymous
  • anonymous
Super fast typer!
tygrr321
  • tygrr321
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anonymous
  • anonymous
But it doesnt matter, it's all about making him understand how to use the substitution method.
Vickyisthesmartone123
  • Vickyisthesmartone123
It taes so long just to get to the point!
Vickyisthesmartone123
  • Vickyisthesmartone123
*takes
anonymous
  • anonymous
But he needs to learn it first, you can't learn something new in 2 seconds.
tygrr321
  • tygrr321
only if its 15 seconds than yeah
Vickyisthesmartone123
  • Vickyisthesmartone123
BYE COPYING AND PASTING? SHEESH
Vickyisthesmartone123
  • Vickyisthesmartone123
YOUR THE ONE THAT'S NOT GOING TO LEARN
anonymous
  • anonymous
? It doesnt matter where I found the text, if it helps him learn.
anonymous
  • anonymous
I dont need to learn anything from this post, I am not the one who asked it.
Vickyisthesmartone123
  • Vickyisthesmartone123
bye

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