Question

from the sum of 3x -y+11 and-y-11 substract 3x-y-11​

Answer 1

Answer:

y+11

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Step-by-step explanation:

First let's add 3x-y+11 and -y-11.

3x-y+11 + (-y-11)

=3x-y+11-y-11 = 3x-2y.

It's said that we have to subtract 3x-y-11 from the sum. So,

3x-2y-(3x-y-11)

=3x-2y-3x+y+11 = y+11

Remember that,

1) + and - make -

2) - and - make +

3) + and + make +

4) - and + make -