SOLUTION: Solve using the Multiplication Principle. Perform the Check. -1/2x = -9/10.

Algebra ->  Distributive-associative-commutative-properties -> SOLUTION: Solve using the Multiplication Principle. Perform the Check. -1/2x = -9/10.      Log On


   

Question 250131: Solve using the Multiplication Principle. Perform the Check.
-1/2x = -9/10.
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
multiplication principle says that if x=y and a*x=a*y
so we multiply both sides by -10
5x=9
we multiply again by 1/5
x=9/5
check by substituting 9/5 for x in the original equation
-1/2(9/5)=-9/10
-9/10=-9/10
ok