a + (a + 1) + (a + 2) + (a + 3) = x. Which of the following matches this equation?
a = 1; x = 9
a = 0; x = 3
a = 2; x = 6
a = 1; x = 10
Explanation:
Plug in the values of each option in the equation and check.
Option 4: 1 + 2 + 3 + 4 = 10.