noahgommel noahgommel

14-06-2015
Mathematics

Answered

Solve each linear equation by subsitution or elimination

4x-y=-1

2x+y=7

Verified Answer :

Panoyin Panoyin

16-06-2015

4x - y = -1
2x + y = 7
   6x = 6
      6    6
       x = 1
4x - y = -1
4(1) - y = -1
    4 - y = -1
- 4 - 4
      -y = -5
      -1 -1
   y = 5
   (x, y) = (1, 5)

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