Use the variable x for the unknown. Write an equation representing the verbal sentence and solve the problem.Four times a number added to 8 times the number equals 36.
A. 4x - 8x = 36; -4.5
B. 4x(8 + x) = 36; 4.5
C. 4(x + 8) = 36x; 1
D. 4x + 8x = 36; 3
Answer: D
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