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2 years ago

13

4 + 1 = 17 What is the solutikn

1 answer:

alex41 [277]2 years ago

4 0

Answer:

Step-by-step explanation:

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Solve and check: 3 x2 5x 6 x − 1 x 2 = 7 x 3

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Answer:

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x = -2 is an extraneous solution .

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Solve by using substitution<br>-7x-2y=-13 and x-2y=11

netineya [11]

$\left \{ {{-7x-2y=-13} \atop {x-2y=11}} \right. \\\\ \left \{ {{-7x-2y=-13} \atop {x=11+2y}} \right.\\\\
Substitute\ second\ equation\ into\ the\ first\ one:\\\\
-7(11+2y)-2y=-13\\
-77-14y-2y=-13\\
-77-16y=-13\ \ \ |Add\ 77\\
-16y= 64\ \ \ |Divide\ by\ -16\\
y=-4\\\\x=11+2y=11+2*(-4)=11-8=3\\\\ \left \{ {{y=-4} \atop {x=3}} \right.$

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3 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

Eighty percent of the fans left the competition happy. If 800 fans left the competition unhappy, how many left happy ?

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3 years ago

What is this answer anyone

vampirchik [111]

The answer for this question is 36

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