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3 years ago

X – 7y=-1 -X + 9y = 3

Mathematics

1 answer:

Aleks04 [339]3 years ago

7 0

Answer:

y=1

x=6

Step-by-step explanation:

just move -7y and x=-1+7y

-(-1+7y)+9y=3

1-7y+9y=3

2y=2

y=1

x-7=-1

x=6

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