Question

solve by elimination method
-5x + 2y = 6
-x + y = 9​

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

(-x+y=9)×5=-5x+5y=45-------- I

now subtract this equation from first equation

-5x+2y=6

-(-5x+5y=45)

⇒-5x+2y=6

5x-5y=-45

=-3y=-39

:y=13

Put y=13 in eq I

-5x+5(13)= 45

=-5x=45-65

⇒-5x= -20

:x= 4

So x=4,y= 13