SOLUTION: this is the problem that i cannot understand -x(a-b) if x= -2, a=3, and b = -1 we dont know how to solve this. thanks so much for the help it is much appreciated, Rebecca

Algebra ->  Surface-area -> SOLUTION: this is the problem that i cannot understand -x(a-b) if x= -2, a=3, and b = -1 we dont know how to solve this. thanks so much for the help it is much appreciated, Rebecca      Log On


   

Question 54775This question is from textbook algebra 1
: this is the problem that i cannot understand
-x(a-b) if x= -2, a=3, and b = -1 we dont know how to solve this.

thanks so much for the help it is much appreciated, Rebecca This question is from textbook algebra 1

Answer by tutorcecilia(2152) About Me  (Show Source):
You can put this solution on YOUR website!
-x(a-b) [Substitute (-2) for x; (3) for a and (-1) for b within the expresssion]
-(-2)[(3)-(-1)] [Just dump the value of each letter back into the problem regardless of the sign]
.
-(-2)[(3)-(-1)] [Use the order of operations (PEMDAS) to simplify]
+2(3+1)
2(4)
8