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A minus negative acts like a plus.
-25-(-42)= -25+42
Different signs means find the difference of 17 and put the sign of the greater absolute value.
So positive 17 is your answer.
41 - -42 is 83
-14 - +7 - -25 = 4
-3 minus -28 is 25
-5 - -25 = 20
(-18) - (-25) = 7
-112
7:25 minus 42 minutes is 6:43.
-50
-42
-3.5
-25 + -42 = -67
-14 - 25 = -39