3 years ago

2x-y+7whenx= -5andy-2.

Mathematics

1 answer:

Paha777 [63]3 years ago

7 0

Answer:

-1

Step-by-step explanation:

2x-y+7

Let x = -5 and y = -2

2(-5) -(-2) +7

-10 +2 +7

-10 +9

-1

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