-20
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-12-(+10)=-22. Negative 22 is the final answer
-5
8
The expression "negative 8 minus 7" can be simplified as -8 - 7. To subtract a positive number from a negative number, you can add the opposite. Therefore, -8 - 7 is the same as -8 + (-7), which equals -15.
2e - 12 = 7e + 8 Subtract 2e from both sides: - 12 = 5e + 8 Subtract 8 from both sides: -20 = 5e Divide both sides by 5: -4 = e That is, e = -4