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NathaliaMA13
 one year ago
An unknown number y is 12 more than an unknown number x. The number y is also x less than 17. The equations to find x and y are shown below.
y = x + 12
y = −x + 17
Which of the following statements is a correct step to find x and y?
Multiply the equations to eliminate y.
Write the points where the graphs of the equations intersect the xaxis.
Write the points where the graphs of the equations intersect the yaxis.
Add the equations to eliminate x.
NathaliaMA13
 one year ago
An unknown number y is 12 more than an unknown number x. The number y is also x less than 17. The equations to find x and y are shown below. y = x + 12 y = −x + 17 Which of the following statements is a correct step to find x and y? Multiply the equations to eliminate y. Write the points where the graphs of the equations intersect the xaxis. Write the points where the graphs of the equations intersect the yaxis. Add the equations to eliminate x.

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NathaliaMA13
 one year ago
Best ResponseYou've already chosen the best response.0@Michele_Laino Are you busy? can you please explain to me how I solve this?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Add the equations to eliminate x.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0By eye ball, y = 29/2

NathaliaMA13
 one year ago
Best ResponseYou've already chosen the best response.0I understand now. Thanks so much @robtobey

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1If I add those equations, I get: \[\Large y + y = x + 12  x + 17\] please simplify

NathaliaMA13
 one year ago
Best ResponseYou've already chosen the best response.0\[y ^{2} = 29/2 ?? \]

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1no, we have: \[\Large 2y = 29\] dw:1433789390159:dw

NathaliaMA13
 one year ago
Best ResponseYou've already chosen the best response.0Okay. but you don't divide any thing at all?

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1yes! I can divide by 2, so I get: y=29/2 dw:1433789590713:dw

NathaliaMA13
 one year ago
Best ResponseYou've already chosen the best response.0Okay, I'm starting to understand more simpler. Can you explain to me how to solve another question, please?

NathaliaMA13
 one year ago
Best ResponseYou've already chosen the best response.0In a different thread or on this one?

NathaliaMA13
 one year ago
Best ResponseYou've already chosen the best response.0Ok c: so I'm really getting confused on this question; although it's 8th grade math. it's still very difficult for me :c I tried, I promise I have...

NathaliaMA13
 one year ago
Best ResponseYou've already chosen the best response.0Betsey is 11 years older than Waldo. Betsey's age is 15 years less than three times Waldo's age. The system below models the relationship between Betsey's age (b) and Waldo's age (w): b = w + 11 b = 3w − 15 Which of the following methods is correct to find Betsey's and Waldo's age? Solve w + 11 = 3w − 15 to find the value of w. Solve b + 11 = 3b − 15 to find the value of b. Write the points where the graphs of the equations intersect the xaxis. Write the points where the graphs of the equations intersect the yaxis.

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1since those equations have the same left side, then we can write: \[\Large w + 11 = b = 3w  15\] or: \[\Large w + 11 = 3w  15\]

NathaliaMA13
 one year ago
Best ResponseYou've already chosen the best response.0OH. The substitution method..Yes.

NathaliaMA13
 one year ago
Best ResponseYou've already chosen the best response.0But, hey..what value did It solve for? value w, or for value b?

NathaliaMA13
 one year ago
Best ResponseYou've already chosen the best response.0There's no value b in any of the answer. So i'm going for value w. lol

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1if we solve the last equation for w, we get: \[\Large 2w = 26\]

NathaliaMA13
 one year ago
Best ResponseYou've already chosen the best response.0Great. Thank you @Michele_Laino I want to give you a medal. But I gave a medal to @robtobey already ://

NathaliaMA13
 one year ago
Best ResponseYou've already chosen the best response.0I undid it, because you gave better explanations. lol. Have a great day! :)
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