What is the difference of open paren negative 3 point 4 x plus 4 point 7 close paren minus open paren 3 plus 2 point 9 x close paren ?

Distribute the subtraction sign across the second parentheses: (−3.4x + 4.7) − (3 + 2.9x) = −3.4x + 4.7 − 3 − 2.9x. Combine like terms: −3.4x − 2.9x = −6.3x, and 4.7 − 3 = 1.7. The difference is −6.3x + 1.7, choice B.

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