6*4+2 / 2-7
1: 20+2 / 2-7
2: 20+1-7
3: 21-7
14
In this equation we need to use OoO ( order of operations) Or Pemdas!
The first step seince there arnt any exponents or parenthesies we need to multiply 6*4=20 Next we need to divide 2 by 2 wich is 1. Now that we got multiplication and divition done we add 10+1 wich is 21. Last but not least wesubtract 21 by 7= 14 Therefor the awnser is 14!
Sandy didnt follow Pemdas and she did not go from left to right. She added and did not divide on step one and on step 2. All the other steps are right sandy messed up on step 1. Therfore sandy got a difrent awnser than she was soupossed to.
My grammer sucks, but hey i hope i helped!!! All you gotta do now is fix the grammer and your good to go. ( i hope...)