Question

if 2x+3y=15 and xy=6 solve x and y

Answer 1

2x+3y=15----(1)
here
xy=6
x=6/y

put x=6/y in eq^n no. 1
2×6/y+3y=15
12/y+3y=15
12+3y=15×y
12=15y-3y
12y=12
y=12/12
y=1

but x=6/y
then x=6/1
x=6

(x,y)=(6,1) is the soln of ur question.

Answer 2

here is the answer .

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