37. Multistep equations

User Generated

ynanrs358

Mathematics

Question Description

Consecutive even integers are even whole numbers that follow one another. For example, 12, 14, and 16 are consecutive even integers. If the sum of three consecutive even intergers is 66, what are the integers? (HINT let x=1st number)

Equation:

1st number:

2nd number:

3rd number:

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Explanation & Answer

Let the integers be 2x-2, 2x and 2x+2

so 2x-2+2x+2x+2 =66

               6x = 66

                x= 66/6 =11

So the middle number is 2x which is 2*11 = 22

Ist number = 22-2 =20

3rd number = 22+2 = 24

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Tbcny_E (1109)
UCLA

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