3 years ago

How does writing equivalent equations help you solve a system of equations?

1 answer:

3 0

Equivalent equations help you to knock out the choices and solve the problems more easier.
for example

x + 6y = 8
2x + 4y = 8
multiply first equation to get rid of from x
2x+12y=16
2x+4y=8
now subtract second equation from first
8y=8
y=1
now put value of y in seond equation
2x+4(1)=8
2x=8-4
2x=4
x=2
hence,
equivalent equations help you to solve a system of equations

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Which of the following equations is equivalent to x - y = 5?

Masja [62]

Answer:

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Step-by-step explanation:

The complete options are

a) x - 2y = 30

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Verify option d

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4 years ago

In a list of 100 numbers , the fraction of numbers greater than 15 is (19/25) and the fraction of numbers less than 15 is (7/50)

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