Question

What are three consecutive integers whose sum is 138? Write and solve an equation with one variable. What are three consecutive integers whose sum is 138? Write and solve an equation with one variable.

Answer 1

x + (x+1) + (x+2) = 138
combine like terms
3x + 3 = 138
subtract 3
3x = 135
divide by 3
x = 45

so the three numbers are 45, 46, and 47