What is the difference ?

Question

3+5r-(2r-5)

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Answer 1 · 2018-05-08T22:46:10

#8+3r#

#3+5r-(2r-5)#

First remove the brackets, as there is a negative sign outside the bracket, we change the signs of all the terms inside.

#=>3+5r-2r+5#

Now collect like terms

#=> 8+3r#