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Hrsanei Posted 15 years ago
Grammar

Substitute

Hi.

would you please correct the following sentence.

A=B+C (10)

B=2C (11)

"By substituting equation (11) into equation (10), one obtains"

A=3C (12)



(I made some simple examples of the equations to clarify what I intend to convey.)

I think into is not a good preposition for the verb substitute, my understanding is that I have to either change substitute or into.



Thanks for your help
  

Top answer

"By substituting eaquation (11) for equation (10), one obtains", I think.

— Makaay

  • "By substituting eaquation (11) for equation (10), one obtains", I think.
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3 Answers
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"By substituting eaquation (11) for equation (10), one obtains", I think.
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hrsaneiI think into is not a good preposition for the verb substitute
In a mathmatical context, it seems all right to me, but you could modify it to make it a little more exact if you wanted to.

By replacing B in equation (10) with its equivalent 2C, as shown in equation (11), we obtain equation (12).

CJ
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makaay"By substituting eaquation (11) for equation (10), one obtains", I think.
Actually, no. You're not substituting one equation for another equation. You're only replacing a part of the first equation with something from the second equation.

CJ
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