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Iteru [2.4K]
3 years ago
12

X² + 6x – 27=0 What is the answer for this question

Mathematics
2 answers:
Tju [1.3M]3 years ago
7 0
(x+9)(x-3)=0
x = 3,-9
muminat3 years ago
6 0
The answer is X1=-9,X2=3
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6x + 2y = 18 -4x - 2y = -6
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Answer:

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Step-by-step explanation:

6x + 2y = 18

-4x - 2y = -6

Add the two equations together to eliminate y

6x + 2y = 18

-4x - 2y = -6

------------------------

2x +0y = 12

Divide by 2

2x/2 = 12/2

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Then find y

6x+2y = 18

6*6 +2y = 18

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Subtract  36 from each side

36+2y-36 = 18-6

2y = -18

Divide by 2

2y/2 = -18/2

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