(ii) Solve : x +y=7, 2x – 3y =9.
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Answer:
x=12 , y=5
Step-by-step explanation:
x+y=7 , 2x-3y=9
(x+y-7=0)×2 , 2x-3y-9=0
2x+2y-14=0
solve both equations, by elimination method
therefore,
x=12 and y=5
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