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Arlecino [84]
3 years ago
14

Find the solution of the systems of equations x=8+y and x-11y= -12

Mathematics
1 answer:
Flura [38]3 years ago
7 0
<span>x - y = 8
x -11y = -12
----------------subtract
10y = 20
    y = 2

x - 2 = 8
x = 10

answer
(10, 2) is the solution of the system


</span>
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Klio2033 [76]
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Read 2 more answers
3a² + 11a – 42<br><br>this is factoring in algebra 2 (high school) <br>​
N76 [4]

To factor,

<h2>[[[</h2>

1) First multiply coefficient of a² and constant no,

That is,

3×(-42)=-126

Since the<u> resultant no is negative</u>, you should find two such factors of 126 <u>which</u> <u>will give us the coefficient of a (=11)</u> on subracting those factors.

2) Find the factor

126=2×3×3×7

=18×7

18 and 17 are factors of 126

Also,18-7 =11.

So they are required factors for factoring,

<h2>]]]</h2>

Once you have understood above steps you can solve on your own. All you need to do is split 11 into factors ,take common terms and you will get answer.

<u>Answer:</u>

3a²+11a-42

=3a²+(18-7)a -42

=3a²+18a-7a-42

=3a(a+6) -7(a+6)

=(a+6)(3a-7)

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Harrizon [31]

Answer:

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8 0
3 years ago
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