The sum of 4 consecutive even numbers is 92. Write an equation in which x represents the smallest of these 4 numbers. Then solve for x.

Let x = the first even number

x + 2 the second

x + 4 the third

x + 6 the fourth

Add together.

x + x + 2 + x + 4 + x + 6 = 92

Combine like terms.

4x + 12 = 92

Subtract 12 from both sides

4x = 80

Divide both sides by 4

x = 20