Select the expression equivalent to (2.1x+4.3)−(−3x−7). A −0.9x−2.7 B −0.9x+11.3 C 5.1x−2.7 D 5.1x+11.3

asked Apr 19, 2022 211k views

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Select the expression equivalent to (2.1x+4.3)−(−3x−7).

A −0.9x−2.7
B −0.9x+11.3
C 5.1x−2.7
D 5.1x+11.3

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2 votes

ANSWER: D 5.1x+11.3

Step-by-step explanation:

I'm correct if i'm rwong

MHewison answered Apr 21, 2022

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5 votes

Answer:

Step-by-step explanation:

$(2.1x + 4.3) - ( - 3x - 7) \\ = 2.1x + 4.3 + 3x + 7 \\ = 5.1x + 11.3$

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