algebra

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I am having trouble figuring this out.

ADD
(r - 6s + 3) + (7r + 5s) + (s+5)

  • algebra -

    Clear the parentheses.
    r-6s+3+7r+5s+s+5=??
    combine like terms.

  • algebra -

    I rewrite it according to terms.

    r+7r= 8r which is like saying 1+7=8 (then add back the variable)
    Same applies to the following:

    -6s+5s+s=0 which is like saying -6+5+1=0

    3+0+5= 8

    So you would end up with: 8r+8

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