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Anni [7]
2 years ago
13

What is the value of x and y if 21x+7y=42 and -5x+5y=10 are equal

Mathematics
1 answer:
nikdorinn [45]2 years ago
7 0

Answer:

-5x/5 +5y/5=10/5=2

y-x=2

y=x+2

21x+7*(x+2)=42

21x+7x+14=42

28x=42-14

28x=28

x=1

y=1+2

y=3

Step-by-step explanation:

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1 year ago
Point M is located at (-6,6).<br> What is located 5 units from point M?
timurjin [86]
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To write the equation of line in y = mx + b form, we need

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I would start by setting up a coordinate

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I have shown this below.

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