2x-7y=13
3x+y=8
substion
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Answer:
Step-by-step explanation:
2x-7y=13 ..... (1)
3x+y=8 ...... (2)×7
2x-7y=13
21x+7y=56
-----------------
23x=69
x=3
Now,putting the value of x in equation (1)
2×3-7y=13
-7y=13-6
-7y=7
y=-1
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