SOLUTION: What am I doing wrong? Problem: "Subtract 7x-2 from x + 5" My equation is x+5-7x-2. Combined like terms, I get -6x+3. My math book says the answer is -6x+7. What am I do

Algebra ->  Equations -> SOLUTION: What am I doing wrong? Problem: "Subtract 7x-2 from x + 5" My equation is x+5-7x-2. Combined like terms, I get -6x+3. My math book says the answer is -6x+7. What am I do      Log On


   

Question 1152209: What am I doing wrong?

Problem: "Subtract 7x-2 from x + 5"

My equation is x+5-7x-2. Combined like terms, I get -6x+3. My math book says the answer is -6x+7. What am I doing wrong here because I don't get how that negative two ends up being positive to make 7.
Found 2 solutions by MathLover1, Alan3354:
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!

Subtract 7x-2+from x+%2B+5:
x+%2B+5-%287x-2%29
x+%2B+5-7x%2B2......combine like terms
%28x+-7x%29+%2B+%285%2B2%29
-6x%2B7

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!

My equation is x+5-7x-2. Combined like terms, I get -6x+3. My math book says the answer is -6x+7. What am I doing wrong here because I don't get how that negative two ends up being positive to make 7.
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Problem: "Subtract 7x-2 from x + 5"

    x + 5
- (7x - 2)
------------------
   x + 5
 -7x + 2
======================= Add
 -6x + 7