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Leto [7]
3 years ago
5

What is real world problem that can be solved by using the equation 5x = 45

Mathematics
1 answer:
Harrizon [31]3 years ago
8 0
You have 5 apples, together they cost 45 dollars, how much does each apple cost.

5x/5
45/5

x=9
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Use substitution to solve the system.<br> -5x + 3y = 19<br> x = 3y - 11
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Answer:

x = -2

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Step-by-step explanation:

-5x + 3y = 19

x = 3y - 11

-5x + 3y = 19

-5(3y - 11) + 3y = 19

-15y + 55 + 3y = 19

-15y + 3y + 55 = 19

-12y + 55 = 19

-12y = 19 - 55

-12y = -36

y = -36/-12

<u>y = 3</u>

x = 3y - 11

x = 3(3) - 11

x = 9 - 11

<u>x = -2</u>

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Can someone help me please?
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