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What value will make the equation true -21-?=1.5
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What value will make the equation true -21-?=1.5

User Nikhil Kamani
by
4.3k points

1 Answer

3 votes

Answer: ? = -22.5

Explanation:

Using a negative number to replace the ? turns the minus into a plus sign.

-21 - (-22.5) = 1.5 is the same as -21 + 22.5 = 1.5

User Bruno Rijsman
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