sir, in the exercise 3.1,Question no.4
i dont understand that how solved this quetion
q.4 what should be subtracted from 2a+6b-5 to get -3a+2b+3 ???
pls sir get the solution and tell me
i hope you will find ..
Asked by Sumit
23rd November 2016,
8:53 PM
Answered by Expert
Answer:
The question you are referring to is as follows:
What shoud be subtracted from 2a+6b-5 to get -3a+2b+3?
Solution:
Let X be the algebraic expression that has to be subtracted from 2a+6b-5 to get -3a+2b+3.
So,
2a+6b-5 - X = -3a+2b+3
that is, 2a+6b-5 - (-3a+2b+3) = X ....(Isolating X to one side)
that is, 2a+6b-5 +3a-2b-3 = X
so, 2a+3a+6b -2b-5-3 = X
so, 5a+4b-8 = X
That is, the algebraic expression that has to be subtracted from
2a+6b-5 to get -3a+2b+3 is 5a+4b-8.
Answered by Expert
23rd November 2016,
10:55 PM
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