Question

The sum of three consecutive even integers is 126. Let x represent the first integer, x + 2 represent the second integer, and x + 4 represent the third integer.

Which equation can be used to find the first integer?

2x + 6 = 126

3x = 2x + 6

3x + 6 = 126

3x + 126 = 2x + 6

Answer 1

We have that (x) + (x+2) + (x+4) = 126 so 3x + 6 = 126 can be used to find the first integer.

3x + 6 = 126
3x = 120
x = 40

The numbers are 40, 42, 44

Answer 2

Consecutive numbers are numbers that follow each other.

The equation to calculate the first integer is: $3x + 6 = 126$

The numbers are given as: x, x + 2 and x + 4

And their sum is:

$Sum = 126$

So, we have:

$x + x +2 + x + 4 = 126$

Collect like terms

$x + x + x + 2 + 4 = 126$

$3x + 6 = 126$

Hence, the equation to calculate the first integer is:

$3x + 6 = 126$

Read more about consecutive numbers at:

https://brainly.com/question/2493629