adamsfredrick352
adamsfredrick352 adamsfredrick352
  • 17-01-2021
  • Mathematics
contestada

6x-2y=156.......(1)
X - y=18.........(2)
(1)-2×(2 )
How will you go about it​

Respuesta :

lizzyib lizzyib
  • 17-01-2021
Plug in equation 1 and 2 into the formula: 156-2*18=
Answer Link
forthswatw2001
forthswatw2001 forthswatw2001
  • 17-01-2021

Answer:

Step-by-step explanation:

(1) 6x-2y=156

2×(2) ; 2(x-y=18)

;2x-2y=36

from (1)-2×(2)

is 6x-2y=156 -

2x-2y=36

4x=120

x=30

from (2)

x-y=18

x-18=y

y=30-18

y=12

Answer Link

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