mustanq
mustanq mustanq
  • 03-08-2018
  • Mathematics
contestada

help!
btw, they are 2 different questions.

help btw they are 2 different questions class=
help btw they are 2 different questions class=

Respuesta :

choixongdong
choixongdong choixongdong
  • 03-08-2018

4x - 3y = 18 (1)

8x - 6y = 34 (2)

Divide equation b by 2

4x - 3y = 17

So now you have

4x - 3y = 18

4x - 3y = 17

--------------------subtract

0 - 0 = 1

0 ≠ 1

No solution

Answer is the last option

4x - 3y = 18

8x - 6y = 34

------------------------------

3x + 6y = 22 (1)

6x + 12y = 44 (2)

Divide equation 2 by 2

3x + 6y = 22 -------------same as equation 1

Subtract equation 2 from 1

0 = 0

Infinitely many solutions

Answer is the second option

3x + 6y = 22

6x + 12y = 44

Answer Link

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