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Alex Ar [27]
3 years ago
9

Solve the system of equations using substitution. 3x + 7y = 19 -X + 8y = -27

Mathematics
1 answer:
Harman [31]3 years ago
5 0

Answer:

x= 11

y= -2

Step-by-step explanation:

8y + 27 =x

3(8y+27) + 7y =19

24y + 81 + 7y =19

31y + 81 =19

<u>       -81    -81</u>

<u>31y</u> = <u>-62</u>

<u>31       31      </u>

y = -2

-x + 8(-2) = -27

-x - 16 = -27

<u>    +16    +16   </u>

-x = -11

x= 11

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Step-by-step explanation:

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a person is earning ₱750.00 per day to do a certain job .express the total salary S as a function of the number n of days that t
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<em>Find out more at brainly.com/question/8287726.</em>

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Hello there! I can help you! So there is one blue counter added to two green counters. To solve this problem, we can write and solve an equation. Set it up like this:

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