solve 5x+y=9 and 2x-y=5 in any method
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Answered by
1
Answer:
5x + y =9
let x= 1
5(1)+y=9
5 + y=9
y=9-5
y=4 (1)
put (1) in equation
5(x) + 4 =9
5(x)= 9-4
5(x)=5
x=5/5
x=1
Step-by-step explanation:
try 2 part with this method
Answered by
80
5x + y = 9 _____1)
2x - y = 5 _____2)
Add 1) and 2)
5x + 2x = 14
= = > 7x = 14
= = > x = 2
Put the value of x in equation 1)
5(2) + y = 9
= = > 10 + y = 9
= = > y = 9 - 10
= = > y = -1
Hence ,
x = 2 , y = -1
Hope it helps..!
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