Translate the phrase into a mathematical expression and then simplify. Use x as the variable.Eight times a number, added to the sum of the same number and four.

A. 8x + x; 9x
B. 8x + 4; 8x + 4
C. 8x + 4x; 12x
D. 8x + (x + 4); 9x + 4


Answer: D

Mathematics

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