SmartMathMan

thx so much

Do you mean when 3=x and y=-6?

4+5-7*9/3

first according to pemdas you multiply, so you will have-

4+5-21

now all that's left is addition and subtraction, so go in order, which ever comes first. Next, 4+5 which will give us-

9-21

now just subtract and you get 

-12

i can't it is too hard...but ill try

i said the answer was 1/6 did i get it?

Before nyone answers ill tell you what i got and see if it is correct

thx soo much

thx

i am stressed

thanks so much