SOLUTION: I need help solving equations with integers.Can you show me the steps to solving problems like -4-7=x or 8+x=-20.I dont understand how to do any of them or the steps to do it.Think

Algebra ->  Equations -> SOLUTION: I need help solving equations with integers.Can you show me the steps to solving problems like -4-7=x or 8+x=-20.I dont understand how to do any of them or the steps to do it.Think      Log On


   

Question 429520: I need help solving equations with integers.Can you show me the steps to solving problems like -4-7=x or 8+x=-20.I dont understand how to do any of them or the steps to do it.Think you
Answer by jorel1380(3719) About Me  (Show Source):
You can put this solution on YOUR website!
The first thing to do in solving problems like this are to get your variables on one side of your equation and your integers on the other, like;
8+x=-20
The first thing to do is add 20 to each side:
8+x+20=-20+20
28+x=0
Now, get your variable on the other side by subtracting x from each side:
28+x=0
28-x=0-x
28=-x
Multiply each side by -1, we get
-28=x
x=-28.
To solve your first problem, multiply through by -1
-1(-7-4)=-1(x)
7+4=-x
11=-x
-11=x