rosie36
rosie36
30-08-2016
Mathematics
contestada
please help me on number 2
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Zinethar
Zinethar
30-08-2016
The answer is B. Because B is a negative number, -B is a positive number. If adding them together gets 0, then A+B=0. Because of this, you can subtract B from both sides, leaving the answer A=-B
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