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3 years ago

25 Points for answer

Mathematics

2 answers:

Luden [163]3 years ago

7 0

Answer: 2

Step-by-step explanation:

First you have to plug in the value for x which is -18 so then you're equation then get y by itself and solve for y. This becomes

-3(-18) -y = 56

54 - y = 56

-54 -54

Y=2

You can check your work by plugging in 18 for x and 2 for y and when you solve the equation your answer should equal 56.

e-lub [12.9K]3 years ago

5 0

Answer: 2 (Brainliest?)

Step-by-step explanation:

-3(-18) -y = 56

54 - y = 56

y= 2

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Answer: Mason has 40 forty-nine cent stamps, 16 twenty cent stamps and 25 three cent stamps

Step-by-step explanation:

Let x represent the number of 49 cent stamps that Mason has.

Let y represent the number of 20 cent stamps that Mason has.

Let z represent the number of 3 cent stamps that Mason has.

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