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serious [3.7K]
3 years ago
10

5x + 2y = 8

Mathematics
1 answer:
notsponge [240]3 years ago
5 0
Multiply the equation x+y =4 by -5
The resultant would be- 
-5x -5y = -20
Adding this with 5x +2y =8
Then, the resulting would be, 
-3y = -12
∴ y=4
and x=4-4 =0
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