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mr_godi [17]
3 years ago
6

Consider the following pair of equations:

Mathematics
2 answers:
Anarel [89]3 years ago
4 0

y=-2x+8    y=x-1

    +2x           +2x

y=8           y=3x-1

   +1                 +1

y=9           y=3x

/3                  /3

3                 x

therefore x=3

Romashka-Z-Leto [24]3 years ago
4 0
From both the equations we get,
   x - 1 = - 2x + 8
x + 2x = 8 + 1
      3x = 9
        x = 9 / 3
        x = 3.

So putting the value of x in the 2nd equation we get,
     y = 3 - 1
     y = 2.

So, (x,y) = (3,2) . 
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