Simplify the expression shown. 3 x plus 2 minus 3 x plus 7 plus 5 x What is the coefficient in the simplified expression?

Combine the like terms in 3x + 2 − 3x + 7 + 5x. The x-terms give (3 − 3 + 5)x = 5x, and the constants give 2 + 7 = 9, so the simplified expression is 5x + 9. The coefficient of x is 5, which is choice C.

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