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Law Incorporation [45]
3 years ago
12

QUIZ

Mathematics
1 answer:
stepan [7]3 years ago
3 0

eliminating y

x - y = -5

3x + y = 1

________ +

4x = -4

x = -1

eliminating x

• x - y = -5 ....... (x3)

3x + y = 1 ....... (x1)

• 3x - 3y = -15

3x + y =1

___________ -

-4y = -16

y = 4

A. (-1, 4)

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Step-by-step explanation:

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Answer:

Step-by-step explanation:

w / h = u / HG

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48/8 = HG / 5

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not too tuff... when you set the relationship so it's easiest  :)

and yes.. we cold have swapped the fractions and done it the other way and gotten the same answer.. but maybe with a bit more algebra.. and... avoid extra algebra ... that's where the mistakes can be made  :P

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Step-by-step explanation:

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