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OverLord2011 [107]
2 years ago
13

Substitute X=3y X-3y=0

Mathematics
2 answers:
OleMash [197]2 years ago
8 0

Step-by-step explanation:

x=3y

put

x=3y

3y-3y=0

0=0

nadya68 [22]2 years ago
4 0

Answer:3y-3y=0

Step-by-step explanation: They are giving you a value for X that is 3y. You put that value in place of x. So, if x=12 and they want you to substitute for x-3y=0, you would have 12-3y=0....but the value of x in your question is 3y....so you replace the x in the equation with it's value...which is given to you as 3y....or in my example, 12.

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Answer:

Get a calculator

Step-by-step explanation:

Most of the time for simple math like multiplying 2 digits, it is easiest if you just get a calculator. It saves a lot of time.

If you can't get a calculator then i recommend memorizing some common equations.

For example 10*15= 150

so that if you get 12*15=?, you can easily just add two extra 15's to your answer of 150.

15+15 is 30, and 30+150(from 10*15)=180.

Therefore 12*15=180.

:) Hope that helped!

4 0
2 years ago
Can someone please help me with this?
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Answer:

A. -0.875

Step-by-step explanation:

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Step-by-step explanation:

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Answer:

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