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40 votes
40 votes
Celia simplified the expression Negative 4 x (1 minus 3) minus (2 x + 2). She checked her work by letting x = 5 in both expressions. Her work for the original expression is shown below.

Negative 4 x (1 minus 3) minus (2 x + 2) = negative 4 (5) (1 minus 3) minus (2 (5) + 2) = negative 20 (negative 2) minus 12 = 40 minus 12 = 28.


Celia knows that the simplified expression should also equal 28 when x = 5. Which shows Celia’s simpllifed expression?
–6x – 1
–6x + 2
6x + 1
6x – 2

User AndOs
by
3.3k points

2 Answers

17 votes
17 votes

Answer:

6x - 2

Explanation:

Edge

User Danny Kopping
by
3.1k points
13 votes
13 votes

Answer:

6x-2

Explanation:

-4x(1-3)-(2x+2)

= 4x+12x-2x-2

6x-2

(simplify)

User Anusha Pachunuri
by
2.7k points