Question

Select the correct answer.

3(* + 4) - 2 (1 - 1);
Which is the simplified form of the expression
OA.
39
-
- 1
11
2
67
B.
101 + 9
oc. Ir + 1
15 + 10
OD
1

Answer 1

The simplified form of the expression 3(r + 4) – 2(1 - 1) is 3r + 12. Option A

Which is the simplified form of the expression?

3(r + 4) – 2(1 - 1)

open parenthesis

= 3r + 12 - 2 + 2

= 3r + 12

Therefore, 3r + 12 is the simplified form of 3(r + 4) – 2(1 - 1)

Complete question:

Select the correct answer. 3(r + 4) – 2(1 - 1) Which is the simplified form of the expression OA. 3r + 12 OB. 12 + 2 - 2 OC. 1r + 1 OD. 15 + 10

Answer 2

12

Explanation:

`3(* + 4) - 2 (1 - 1);\\\\3(* +4)-2(1-1)\\\\3\left(4\right)-2\left(1-1\right)\\\\\mathrm{Remove\:parentheses}:\quad \left(a\right)=a\\=3* \:4-2\left(1-1\right)\\\\3* \:4=12\\2\left(1-1\right)=0\\\\=12-0\\\\=12`