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Taya2010 [7]
3 years ago
8

Evaluate -7a – 2b, if a = -1 and b = 2.

Mathematics
2 answers:
Novay_Z [31]3 years ago
7 0

Plug in a and be into the equations:

- 7( - 1) - 2(2) = \\ 7 - 4 = \\ 3

Roman55 [17]3 years ago
5 0
Plug in a and be into the equations:
- 7( - 1) - 2(2) =  \\ 7 - 4 =  \\ 3
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Answer:

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Step-by-step explanation:

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X+y=4<br> X-3y=12<br> Graph?
AlekseyPX
I'll solve it algebraically


x+y=4
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multiply first equatoin by -1 and add to second

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<u>x-3y=12 +</u>
0x-4y=8


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sub back

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3 years ago
4. What's the area of the above figure, which has sides of length 6 and 8?
ANTONII [103]

Answer:

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Step-by-step explanation:

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What is the result of converting 35 ounces into pounds? Remember that 1 pound = 16 ounces.
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The answer should be A

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