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Kruka [31]
3 years ago
13

PLEASE HELP WILL MARK BRAINLIEST 27+y=14 y=3x²-4​

Mathematics
1 answer:
klasskru [66]3 years ago
6 0

Answer:

First one- y = -13

Step-by-step explanation:

27 + y = 14 (Rearrange equation)

y = 14 - 27 (Combine like terms)

y = -13

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Which is the value of this expression when a=5 and k=-2?<br>[3^2a^-2]^k<br>[3a^-1]<br>​
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Step-by-step explanation:

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((32)(5−2))−2(3(5−1))

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I would use the process of elimination.   Divide 13 from both sides
2x+7y=-57                                                     y=-7 then plug in y to an equation
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multiple the first equation by 3                 2x-49=-57    add 49 to both sides
6x+21y=-171                                              2x=-8       divide two from both sides
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combine like terms                                     So your things would be x=-4 and y=-7
13y=-91                                        And itd make the solution (-4,-7).


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