SOLUTION: 17=5+x 17=5+12 therefore, x = 12 I know this is a simple enough problem but when problems such as this one become more difficult, how would I solve them using the Addition P

Question 167420: 17=5+x
17=5+12
therefore, x = 12
I know this is a simple enough problem but when problems such as this one become more difficult, how would I solve them using the Addition Property of Equality?
Can someone help me solve 17=5+x using the Addition Property of Equality?

Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
17=5+x
The proper procedure to solve these problems is:
Isolate the unknown item on one side of the equation and all integers on the other side by adding, subtractying, multiplying or dividing.
Thus here we have a +5 on the left side with the x term.
Now subtract 5 from both sides
17-5=5-5+x
12=x is the answer.
Prove by replacing x with 12 and verifying that the equation is valid.
17=5+12
17=17
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