10. What should be added to the sum of -25 and 20 to make it equal to the sum of
- 19 and 18?
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Answer:
4
Step-by-step explanation:
(-25+20) + x = -19+18
(-25+20) + x = -19+18-5 + x = -1
(-25+20) + x = -19+18-5 + x = -1x = -1+5 = 4
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