If 3x+5y =9 and 5x+3y =7 then what is the value of x+y?
A) 2
B) 16
C) 9
D) 7
Answers
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By doing substitution method
Putting this value in equation 2 then we get
Putting value of y in equation 1 then we
So our answer is
Taking l. C. M both side
2. is Answer
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