3x + y = 7 and 4x – y = 7 pls solve using graphical method
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Answer:
3x+y-7=0
4x-y-7=0
______
7x -14=0
x=2
from equation 1
6+y-7=0
y=1
Answered by
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9. Solve : 3x + y = 7 and 4x – y = 7
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