solve for x and y:     2x-y = 5     x+y = 3

Expert Answers

An illustration of the letter 'A' in a speech bubbles

2x - y = 5 ...... (1)

x  + y = 3 ........(2)

We will use the elimination method:

Add (1) and (2):

==> 3x = 8

==> x= 8/3

Now to calculate y, we will substitute in (1):

2x -y = 5

==> y= 2x-5 = 2(8/3) -5 = 16/3 -5 = (16-15)/3 = 1/3

==> y= 1/3

Approved by eNotes Editorial Team

Posted on

Soaring plane image

We’ll help your grades soar

Start your 48-hour free trial and unlock all the summaries, Q&A, and analyses you need to get better grades now.

  • 30,000+ book summaries
  • 20% study tools discount
  • Ad-free content
  • PDF downloads
  • 300,000+ answers
  • 5-star customer support
Start your 48-Hour Free Trial