jessicagrant47 jessicagrant47

19-10-2015
Mathematics

Answered

How do I solve this equation using the substitution method

4x-3y=-7

4x+ 1y=-3

Verified Answer :

Panoyin Panoyin

20-10-2015

4x - 3y = -7
    4x + y = -3
          -4y = -4
   -4     -4
   y = 1
    4x - 3y = -7
4x - 3(1) = -7
     4x - 3 = -7
       + 3 + 3
       4x = -4
   4 4
      x = -1
   (x, y) = (-1, 1)

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