Y=-7x+9

5x-y=15

What is the substitution?

B. Which type of infectious agent are a tapeworm, a roundworm, and a hookworm?

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Select the statement that describes this expression: 5 x 3 - (2 x 4) + 5. 5 more than 3 subtract the product of 2 and 4 plus 5 5 times the product of 2 and 4 times 3, then add 5 Subtract the product of 2 and 4 from the product of 5 and 3, then add 5

There are 9 more pencils then pens in a container. There are 25 writing utensils in the container in all. How many pens are there in the container?

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Without his pencil or calculator, Joey knows that 2x³+3x² - 1 = 0 has at least one real solution. How does he know?