3 years ago

PLEAAASE HELP ILL MARK BRAINLIEST

Mathematics

2 answers:

kicyunya [14]3 years ago

8 0

Answer:

The answer is 69

Step-by-step explanation:

You have to substitute y by 9 and by 3

Jet001 [13]3 years ago

8 0

Answer:

Step-by-step explanation:

Since y is equal to 9 and z is equal to 3, we do 10 x 9 - 7 x 3. 10 times 9 is 90, and 7 times 3 is 21.

Then, we do 90-21. 90-21=69. Therefore, 10y-7z = 69.

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1 year ago

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2 years ago

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3 years ago