Verified answer

correct answer is 403.

student subtracted 28 from 375

the correct answer is

375= x - 28

375+28= x

403 =x so x= 403

answer cannot be 347 because 28 has a negative sign and when taken to left hand sign the sign becomes positive so we add it to 375.

375=x+28 because you subtract 28 from both sides you get 347=x the other way x=403

375=x-28; There X=403. The student thought that there is a (+) sign after X, but it is a (-) sign.

375 = x - 28

add 28 to both sides:

x = 403

The student subtracted where addition was required.

- .--

He obviously subtracted instead of adding very common mistake the correct answer is 403