Use the variable x for the unknown, and write an equation representing the verbal sentence. Then solve the problem.When 50% of a number is subtracted from 70, the result is 2 less than the number.
A. 70 - 50 = x - 2; 22
B. 70 - 0.5x = x - 2; 48
C. 70 + 0.5x = x - 2; 144
D. 0.5x - 70 = x - 2; -136
Answer: B
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