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Scilla [17]
3 years ago
8

Simplify the following expression. −3√84x3

Mathematics
1 answer:
prisoha [69]3 years ago
8 0

Answer:

-18root7

Step-by-step explanation:

-3root 84*3

-3root4*7*3*3

-3(2*3)root7

-18root7

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Solve the system using any method.<br> x= - 4y+7<br> -2y+3x=9
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The solution to the given system of equation is (25/7, 6/7)

<h3>System of equation</h3>

Given the system of equation expressed as:

x= - 4y+7 ........... 1

-2y+3x=9 ...........2

Substitute the equation 1 into 2 into have:

-2y + 3(-4y+7) = 9

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y = 6/7

Substitute y = 6/7 into equation 1;

x =-4y + 7

x = -4(6/7) + 7

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x = -24+49/7

x = 25/7

Hence the solution to the given system of equation is (25/7, 6/7)

Learn more on system of equation here; brainly.com/question/14323743

#SPJ1

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Step-by-step explanation:

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