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Mumz [18]
3 years ago
9

What is the value of expression below if u=-5 and y=40

Mathematics
1 answer:
Eva8 [605]3 years ago
5 0

Answer:

what expression

Step-by-step explanation:

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3 years ago
5x-7y=-2<br> -5x-10y=-15
seraphim [82]

{5x-7y=-2

<u>{-5x-10y=-15     </u>(+)

<em>5x-5x-7y-10y=-17</em>

<em> </em>-17y=-17    /:(-17)

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<em /><em>5x-7 *1=-2</em>

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<u>Solution:</u> (1; 1)   

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