the value of x in the equation 2x+y=9 and 3x+y=11 is a) 3 b) 1 c) 2 d) 11
Answers
Answered by
1
Answer:
c) 2
Step-by-step explanation:
2x + y = 9 --------------(1)
3x + y = 11 --------------(2)
(2) - (1)
=>
x + 0 = 11 - 9
x = 2
Answered by
0
Answer:
so, the value of x = 2 (option c)
Step-by-step explanation:
2x+y= 9———— (i)
3x+y=11————(ii)
If, we do that multiple with (i)×1 and (ii)×1
so, we get
2x+y= 9
3x+y=11
- - -
_______
-x. = -2
x = 2 (ans.)
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