Question

350. 3x+5y=9, 2x+3y=4, find x and y.
(a) x=7, y=6 (b)x= -7, y=6
(c)x= -7, y=-6 (d) x=7, y= -6​

Answer 1

Step-by-step explanation:

option a is the answer

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Answer 2

Step-by-step explanation:

3x+5y=9---------(1)

2x+3y=4----------(2)

(1)×2=6x+10y=18

(2)×3=6x+9y=12

(-) (-) (-)

-----------------------

y=6

putting the value of y in equation (1) we can get

3x+5y=9

=>3x+5×6=9

=>3x+30=9

=>3x=9-30

=>3x= -21

=>x= -21/3

=>x= -7

so x= -7 and y=6(option B)