SOLUTION: i was given this problem at school on friday -2.5(2a-4 the teacher said the answer is -5a+10 I ask her to explian it to me but, the bell rang. so can u please explain how she got

Algebra ->  Distributive-associative-commutative-properties -> SOLUTION: i was given this problem at school on friday -2.5(2a-4 the teacher said the answer is -5a+10 I ask her to explian it to me but, the bell rang. so can u please explain how she got       Log On


   

Question 483738: i was given this problem at school on friday -2.5(2a-4 the teacher said the answer is -5a+10 I ask her to explian it to me but, the bell rang. so can u please explain how she got -5a+10 as the answer please. thank u
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
-2.5(2a-4)
= -2.5*(2a) - 2.5*(-4)
= -5a + 10