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Sindrei [870]
3 years ago
8

Please help, I don't know how to get the answer.

Mathematics
1 answer:
natita [175]3 years ago
5 0

Answer:

<u>2</u>a<u> +7a </u>- 7 - <u>31</u>

3      18    1    6

<h2>12a+7a -126 -93</h2><h2><u>                            </u></h2><h2>              18</h2><h2>19a-219</h2><h2><u>               </u></h2><h2>     18</h2>

           

Step-by-step explanation:

the answer is

<u>19a-219</u>

    18

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Solve with substitution. Show each step of your work<br><br> 4x + y = 12<br> 6x + 2y = 18
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4x + y = 12
Get y by itself
Subtract 4x
y = -4x + 12

Since you know what y is, you can plug the value into the second equation

6x + 2(-4x + 12) = 18
6x - 8x + 24 = 18
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x = 3

Plug the value 3 into x for y = -4x + 12 in order to find y
-4(3) + 12 = y, y = 0

Solution: x = 3, y = 0
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3 years ago
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Arte-miy333 [17]
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2 years ago
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ozzi

Answer:

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Step-by-step explanation:

The range is the difference between the highest number and the lowest number.

8 is the highest number and 1 is the lowest number here, so to find the range we would subtract 1 from 8.   8-1=7

But since 8 is being replaced by 6, we would subtract 1 from that instead.

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Hope that helps :)

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Answer:

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Step-by-step explanation:

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