WILL GIVE MEDALS
Solve this system of equations using any method.

2x – y = 5
4x + y = 7

a. (4, –3)
b. (4, –9)
c.(2, –1)
d.(2, –4)

Question

WILL GIVE MEDALS 
Solve this system of equations using any method.

2x – y = 5
4x + y = 7

a. (4, –3)
      b. (4, –9)
      c.(2, –1)
      d.(2, –4)

pixiedust1 · Answer

Okay!! I'm gonna teach you a method called substitution.  Have you learned that already?

anonymous · Answer

no i was out of school for 3 weeks so im extrememly confused

anonymous · Answer

i think its c but im not sure

pixiedust1 · Answer

Okay sorry, my computer broke for a second lol

pixiedust1 · Answer

Okay, so substitution, as the name implies, means putting one thing in place of another.

Let's review.  The coordinates represent (x,y).  Agree?

anonymous · Answer

yes ! i agree

pixiedust1 · Answer

Okay.  So, the first number in the coordinate is the value of x.  The second number is the value of y.   So, we will substitute the answer options into each of the x and y values in the question :)

pixiedust1 · Answer

Let me explain.  I'll do the first one, and hopefully, that'll help

anonymous · Answer

okay , so far so good im understanding

pixiedust1 · Answer

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