Answered

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2x-3y=9. -5x-3y=30 elimination

Sagot :

robertphilemon73

7x=-21

x=(-21÷7)

x=-3

then

2x-3y=9

(2×-3)-3y=9

-6-3y=9

-3y=9+6

-3y=15

y=(15÷-3)

y=-5

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