Question

Select each pair of expressions that are equivalent O 3x+-x+1 4 and 4x + 1 2 +6x and 2(3x + 1) D 3(x + 1)–(1-X) and 2x+3 O 3xand 4(x + 1)-x-4 5.5 + 2.2x + 3.8x - 4.1 and 1.4 + 6X​

Answer 1

The pairs of expressions that are equivalent are:

- 2(3x + 1) and 6x + 2
- 3(x + 1) – (1 – x) and 2x + 3
- 3x and 4(x + 1) – x – 4

Therefore, the correct answer is:

2(3x + 1) and 6x + 2

3(x + 1) – (1 – x) and 2x + 3

3x and 4(x + 1) – x – 4

Note: The last option is not equivalent since 5.5 + 2.2x + 3.8x - 4.1 simplifies to 5.5 + 6x - 4.1 which is not the same as 1.4 + 6x.