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Luba_88 [7]
3 years ago
9

Please help me solve each system by elimination?

Mathematics
1 answer:
alexdok [17]3 years ago
7 0
<span>1)
-4x-8y=16
8x+16y=-16

Multiply fhe first equation by 2:

=> -8x - 16y = 32

Add this new equation with previous second equation

0 = 16, which means that the system has no solutions.

2)

4x-10y=-14
3x+8y=-26
</span>
Multiply the first equation by 3 and the second by - 4:

 12x - 30y =   - 42
-12x - 32y =   104

Add the two new equations
-------------------------
0 - 62y = 62

=> y = -1

replacing in the first equation:

=> <span> 4x-10(-1) = -14</span>

=> 4x + 10 = - 14

=> 4x = - 14 - 10

=> 4x = - 24

=> x = - 24 / 4

=> x = - 6

Answer: x = - 6 and y = - 1

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Answer:

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3) (10 - 2x)9 = (9)(10) - (9)(2x) = 90 - 18x

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6) (-6)(x + 8) = (-6)(x) + (-6)(8) = -6x + (-48) = -6x - 48

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Step-by-step explanation:

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Valentina has a tray where she keeps all of her important papers. the tray is in the shape of a rectangular prism with no top. a
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The volume of a rectangular prism with a length of 12 inches, width of 10 inches, and height of 2.5 inches is 300 cubic inches

<h3>Volume of a rectangular prism</h3>
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  • Height = 2.5 inches

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brainly.com/question/23963432

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