25+6−19+7= 25+6-19+7= 25+6−19+7=
Due to the fact that the exercise only involves addition and subtraction operations, we will solve it from left to right:
25+6=31 25+6=31 25+6=31
31−19=12 31-19=12 31−19=12
12+7=19 12+7=19 12+7=19
19 19 19