SOLUTION: 10x+7=12x-13 Everytime I do this problem, I get -10. I know the answer is 3, but can you give me the steps as you solve it. Thanks.

Algebra ->  Equations -> SOLUTION: 10x+7=12x-13 Everytime I do this problem, I get -10. I know the answer is 3, but can you give me the steps as you solve it. Thanks.      Log On


   

Question 88953: 10x+7=12x-13 Everytime I do this problem, I get -10. I know the answer is 3, but can you give me the steps as you solve it. Thanks.
Answer by tutor_paul(519) About Me  (Show Source):
You can put this solution on YOUR website!
10x%2B7=12x-13
Get the x terms together on one side of the equation:
10x-12x%2B7=-13
Get the x terms alone on one side of the equation and simplify a bit:
-2x=-20
Solve for x:
highlight%28x=10%29
So, both your answers are wrong. Prove it to yourself by plugging the value of x back into the original equation and see if it holds true:
10%2810%29%2B7=12%2810%29-13
107=107
So, you know x=10 is the correct answer.
Good Luck,
tutor_paul@yahoo.com