11-3(x+2) = 8(x+2) = 8x+16 Why was this marked as incorrect?
Follow Math Help Forum on Facebook and Google+
Originally Posted by Ashir 11-3(x+2) = 8(x+2) = 8x+16 Why was this marked as incorrect? you did not follow the order of operations ... 11 - 3(x+2) = 11 - 3x - 6 = 5 - 3x
Originally Posted by Ashir 11-3(x+2) = 8(x+2) = 8x+16 Why was this marked as incorrect? remove brackets first to get -3x - 6 then do the addition-subtraction
Oh, thanks. But why couldn't I subtract 3 from 11 first?
Originally Posted by Ashir Oh, thanks. But why couldn't I subtract 3 from 11 first? The Order of Operations: PEMDAS
I got it, thanks for the help!
View Tag Cloud