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Gre4nikov [31]
3 years ago
8

X+y = -16 —3х – у = 30

Mathematics
1 answer:
lys-0071 [83]3 years ago
8 0

Answer:

x = -7, y = -9

Step-by-step explanation:

The coefficient (the number before) the y is the same but the signs are opposite so add the equations together:

x-3x+y-y=-16+30

-2x=14

x=-7

y=-16-x=-16--7=-9

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Answer:

You can convert the denominator of each to 16 to compare each fraction. The wrenches should go in order from least to greatest: 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, and 3/4. Place on number line between 0 and 1. The number line shows values that are least on the left to the greatest values to the right.

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Now place in order according to the numerator value:

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Answer:

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y = -3(3) + 1 = -8                   3      -8

8 0
3 years ago
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