SOLUTION: prove that if 25=-7(y-3)+5y,then -2=y

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Question 53724This question is from textbook
: prove that if 25=-7(y-3)+5y,then -2=yThis question is from textbook

Answer by funmath(2873) About Me  (Show Source):
You can put this solution on YOUR website!
Substitute -2 in for y and you find that both sides are equal after you simplify:
25=-7(y-3)+5y
25=-7(-2-3)+5(-2)
25=-7(-5)+5(-2)
25=35-10
25=25
Therefore, if 25=-7(y-3)+5y, then -2=y.
If this is supposed to be a proof, you have to justify your steps. Let me know if this is not what you needed.