Question

what makes 3 + 7 + 2 = ( ) + 2 trueA.12B.14C.10

Answer 1

Let the blank space be x. So we have the following

$3+7+2=x+2$

The main purpose is to find the value of x by applying mathematical operations on both sides of the equality sign.

First, we add the numbers on the left hand side. So we get

$3+7+2=12=x+2$

Now, we subtract 2 on both sides, so we get

$x=12\text{ -2=10}$

So, the value of x that makes the equation true is x=10. That is, option C