Mary multiplied a number by -3. When she added the result to 6, she got 12. What is her number?

1 answer:

ipn [44]3 years ago

5 0

X×-3+6=12, -3×=12-6, -3x=6 |÷-3, x=-2

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netineya [11]

A, C, and D are all correct answers, since you are taking away 4 in each of the answers. Hope this helped!

6 0

3 years ago

777dan777 [17]

Ya, what is the question?

6 0

3 years ago

Bas_tet [7]

Answer:

x = 6

Step-by-step explanation:

9 / 6 = (2x - 6) / 4 (by the side splitter theorem)

6(2x - 6) = 36

12x - 36 = 36

12x= 72

x = 6

3 0

3 years ago

stich3 [128]

Answer:

x = 1.71

Step-by-step explanation:

$x^3-20=-15\\x^3=-15+20\\x^3=5\\\sqrt[3]{x^3} =\sqrt[3]{5} \\x=1.71$

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3 years ago

Dima020 [189]

Your answer is D
hope this helps

8 0

3 years ago