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Irina-Kira [14]
3 years ago
6

I need help doing this

Mathematics
2 answers:
Alex3 years ago
8 0
Watch the video. It will help you .
Andreas93 [3]3 years ago
8 0

Step-by-step explanation:

(2x+1)(x+3) and solve it from there I think

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Use the substitution method to solve the given system of equations. Write your answer as an ordered pair, (x, y).
Gnoma [55]

Answer:

(-3, -2)

Step-by-step explanation:

Look at the second equation, we can easily rearrange it to make x the subject.

x - 4y = 5

x = 4y + 5

Now lets put that into the second equation

2x - 2y = -2

2(4y + 5) - 2y = -2

6y + 10 = -2

6y = -12

y = -2

Now lets find x!

x = 4y + 5

x = 4(-2) + 5

x = -3

Now lets format the answer like the question says (ordered pair)

(-3, -2)

Recap: We used substitution and made an equation to work out one of the variables first, then found the second variable using the first.

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3 years ago
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shutvik [7]

Answer:

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Step-by-step explanation:

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Mademuasel [1]

Answer:

6.7

x 2.5

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Step-by-step explanation:

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3 years ago
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Zina [86]

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Answer:

x = 20

Step-by-step explanation:

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