Solve each system by the addition method.

-4x+7y =9

2y=-5x-22

Put the answer in (x,y) form

Question

24-05-2015
Mathematics

Answered

Solve each system by the addition method.

-4x+7y =9

2y=-5x-22

Put the answer in (x,y) form

Verified Answer :

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Panoyin Panoyin · Answer 1 · 2015-05-24T12:42:54-04:00

-4x + 7y = 9 ⇒ -4x + 7y = 9 ⇒    8x - 14y = -18
2y = -5x - 22 ⇒ -5x - 2y = 22 ⇒ -35x - 14y = 154
       43x = -172
      43    43
   x = -4
      -4x + 7y = 9
         -4(-4) + 7y = 9
      16 + 7y = 9
      - 16     - 16
      7y = -7
   7 7
      y = -1
      (x, y) = (-4, -1)

Solve each system by the addition method.-4x+7y =92y=-5x-22Put the answer in (x,y) form

Verified Answer :

Related Questions

Solve each system by the addition method.

-4x+7y =9

2y=-5x-22

Put the answer in (x,y) form