Solve the system by the addition method

4x=3y-8

-16x+4y=32

Question

29-09-2015
Mathematics

Answered

Solve the system by the addition method

4x=3y-8

-16x+4y=32

Verified Answer :

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Panoyin Panoyin · Answer 1 · 2015-09-29T19:33:56-04:00

4x = 3y - 8
4    4
x = ³/₄y - 2

      -16x + 4y = 32
   -16(³/₄y - 2) + 4y = 32
-16(³/₄y) + 16(2) + 4y = 32
      -12y + 32 + 4y = 32
      -12y + 4y + 32 = 32
      -8y + 32 = 32
   - 32 - 32
      -8y = 0
   -8 -8
   y = 0
x = ³/₄y - 2
x = ³/₄(0) - 2
x = 0 - 2
x = -2

(x, y) = (-2, 0)

Solve the system by the addition method 4x=3y-8-16x+4y=32

Verified Answer :

Related Questions

Solve the system by the addition method

4x=3y-8

-16x+4y=32