Which of the following choices is an equivalent expression for 12(r + t) - 6(r + t) + 4(r + t) - 2(r + t) A

8(r - t)

B

8(r + t)

C

8r + 7t

B  8(r + t)

Step-by-step explanation:

We must evaluate the equation in order to get the answer

12(r + t) - 6(r + t) + 4(r + t) - 2(r + t)

6(r + t) + 4(r + t) - 2(r + t)

10(r + t) - 2(r + t )

8(r + t)

The answer is B

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.