she states that twice the number decreased by eight is eighteen

Question

 which choise can be used to find number a) 2(x-8)=18 B)2x-8=18 c)2(x+8)=18 D)2x+8=18

Answer 1

Jocelyn, this can be a difficult question because it's hard to tell what "decreased" applies to. Does it mean that the number*2 -8 is 18 or that 2(number -8) = 18? It's definitely not c or d because you need to subtract with the word decreased. However, depending on how you read this it could be a or b. Decreased means you're probably subtracting before you multiply because otherwise you could say "minus." So A is the correct answer. I hope that helped!