Solve equation and ordered pairs

Algebra
Tutor: None Selected Time limit: 1 Day

8x-y=27

x+4y=24

Solve by elimination method (ordered pairs.. if any)

Sep 13th, 2015

Thank you for the opportunity to help you with your question!

First let us number the equations

8x-y=27     (i)

x+4y=24    (ii)

Let us multiply (i) by 4 to get

32x-4y=108      (iii)

Now add (iii) and (ii) as shown below

32x-4y+x+4y=108+24

33x=132

x=4

Now let us use (ii) to find y

x+4y=24

4+4y=24

4y=24-4

4y=20

y=5

An an ordered pair is a pair of numbers used locate a point on a coordinate plane or a gragh

The point (4,5) is an ordered pair



Please let me know if you need any clarification. I'm always happy to answer your questions.
Sep 13th, 2015

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