SOLUTION: I have this solved. It asks to find a number which is 150 greater than it's opposite. The answer is 75. but I am not sure on how to cheack it. Please help. Thank you=)

Algebra ->  Expressions-with-variables -> SOLUTION: I have this solved. It asks to find a number which is 150 greater than it's opposite. The answer is 75. but I am not sure on how to cheack it. Please help. Thank you=)      Log On


   

Question 152056This question is from textbook algebra
: I have this solved. It asks to find a number which is 150 greater than it's opposite. The answer is 75. but I am not sure on how to cheack it. Please help. Thank you=) This question is from textbook algebra

Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
You are asked to find two numbers such that x and (-x) differ by 150.
So x+=+-x+%2B+150
2x+=+150
x+=+75
To check, just sub in 75 in the original equation
x+=+-x+%2B+150
When x = 75 is this true?
75+=+-75+%2B+150
75+=+75 which is ture, so x =75 is correct