Question

3x+5y=9 and 5x+3y=7 or x+y
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Answer 1

Answer:

$x + y = \frac{1}{2} + \frac{3}{2} = \frac{4}{2} = 2$

Answer 2

Answer:

(3x+5y=9)×5=(15x+25y=45)

(5x+3y=7) ×3=(15x+9y=21)

(15x+25y=45) -(15x+9y=21)

=0x+16y=24

y=24/16=3/2=1.5

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