five times the first of three consecutive even integers is 2 less than twice the sum of the second and third. find the 3 integers

Respuesta :

The three integers are 8, 10, and 12

As we are being asked to solve for the middle of three consecutive even integers, let this be x.  Then, the first even integer is x - 2, and the third even integer is x + 2.

Then, we are given that 5 times the second of three consecutive even integers is six more than twice the sum of the first and third integers.

Translating this into an equation, we have

5 * x = 6 + 2 * (x-2 + x+2)

5x = 6 + 2 * 2x

5x = 6 + 4x

5x - 4x = 6

1x = 6

x = 6

Check the answer; the middle even integer is 6, so the first even integer is 4 and the third is 8

Then, 5 times the second even integer is 5 * 6 = 30

6 + 2 * the sum of the first and third integers is

6 + 2 *(4 + 8) = 6 + 2 * 12 = 30

30 = 30, so it checks