Question

Evaluate 3(a+b) for a=− 1/2 and b=2 1/2 . Record the answer in the simplest way.

Answer 1

Answer: 3(1/2 + 2 1/2) = 3(1/2+5/2) = 3(6/2) = 3*3 = 9

Explanation:

Answer 2

Explanation:

`3(a+b)`

Since we know that a equals -1/2 and b equals 2 1/2, then we can plug in the values into the equation.

`3(-(1)/(2) +2 (1)/(2) )`

First, solve everything in the parentheses.

`3(2)`

Now, multiply 3 by 2.

`3*2=6`

So, your answer will be 6.