Which procedure justifies whether - 3x (5-4) + 3 (x-6) is equivalent to - 12x-6?

The expressions are not equivalent because - 3 (2) (5-4) + 3 (2-6) = -18 and - 12 (2) - 6=-30

The expressions are not equivalent because - 3 (2) (5-4) + 3 (2-6) = -18 and - 12 (3) - 6 = -42.

The expressions are equivalent because - 3 (2) (5-4) + 3 (2-6) = -18 and - 12 (-2) - 6 = 18

The expressions are equivalent because - 3 (2) (5-4) + 3 (2-6) = -18 and - 12 (1) - 6=-18

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Question

Mathematics

Kelly Harrell

19 March, 19:33

Which procedure justifies whether - 3x (5-4) + 3 (x-6) is equivalent to - 12x-6?

The expressions are not equivalent because - 3 (2) (5-4) + 3 (2-6) = -18 and - 12 (2) - 6=-30

The expressions are not equivalent because - 3 (2) (5-4) + 3 (2-6) = -18 and - 12 (3) - 6 = -42.

The expressions are equivalent because - 3 (2) (5-4) + 3 (2-6) = -18 and - 12 (-2) - 6 = 18

The expressions are equivalent because - 3 (2) (5-4) + 3 (2-6) = -18 and - 12 (1) - 6=-18

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Answers (2)

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Justus Contreras · Answer 1

The expressions are not equivalent because Negative 3 (2) (5 minus 4) + 3 (2 minus 6) = negative 18 and Negative 12 (2) minus 6 = negative 30.

Step-by-step explanation:

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Foxy Lady · Answer 2

x=1

Step-by-step explanation:

-3x (5-4) + 3 (x-6)

-15x+12x+3x-18

-3x+3x-18

-18=-12x-6

-12x=-18+6

-12x=-12

12x=12

x=12/12

x=1