14−5−9+7+2= 14-5-9+7+2= 14−5−9+7+2=
Due to the fact that the exercise only involves addition and subtraction operations, we will solve it from left to right:
14−5=9 14-5=9 14−5=9
9−9=0 9-9=0 9−9=0
0+7=7 0+7=7 0+7=7
7+2=9 7+2=9 7+2=9
9 9 9