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yulyashka [42]
3 years ago
5

F(x)=2x+3 find x=9 explain how you got the answer please help me I need the answer today

Mathematics
1 answer:
hram777 [196]3 years ago
6 0
You would fill in 9 for x so your equation would be 2(9)+3 and you would then get 21. Therefore the answer is f(x)=21
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A number is written with 10 zeros, 10 ones and 10 twos. Is it possible for it to be a perfect square ? Please help. I don’t unde
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Step-by-step explanation:

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4 years ago
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4 years ago
Solve the system of linear equations.
icang [17]

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Step-by-step explanation:

Adding Equations 1 & 3 we get 5x = 7. This gives x = 7/5

Putting this value of x in eq. 2 we get

-2y + 2z = -1-(7/5) or

2y - 2z = 12/5  or  5y - 5z = 6

Multiplying eq. 1 by 2  we get  

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adding this with eq. 2 we get 5x = 5 or x = 1

As the common solution for x from equations 1&3 does not satisfy eq. 1&2 it comes out that the three equations do not have a common solution.

Same can be verified by using different sets of two equations also.

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4 years ago
Pls help
CaHeK987 [17]

everything is equivalent except 20/36

3 0
3 years ago
Read 2 more answers
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