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21 votes
21 votes
Please explain your answer to this question! Thank you!

Please explain your answer to this question! Thank you!-example-1
User JayMore
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1 Answer

18 votes
18 votes

Answer:

B. Incorrectly applied the distributive property

Explanation:

You want to find Maria's error in her solution of -2(3x -5) = 40.

Steps

The solution can proceed as follows:

-2(3x -5) = 40 . . . . . . . . given

-6x +10 = 40 . . . . . . . . . use the distributive property

-6x = 30 . . . . . . . . . . subtract 10

x = -5 . . . . . . . . . . divide by -6

Comparing this solution to Maria's, we find that Maria incorrectly applied the distributive property. (She multiplied (-2)(-5) and got -10 instead of +10.)

User Nitanshu
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