Write an equation using the variable x to represent any unknown quantity. Do not solve the equation.A weatherman reports that since 6:00 am this morning the temperature has dropped by  to the current temperature of   Write an equation for which the solution is the temperature at 6:00 am.

A. x + 12 = 40
B. x - 12 = 40
C. x + 40 = 12
D. x - 40 = 12


Answer: B

Mathematics

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