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8-41.

Find three consecutive numbers whose sum is 138 by writing and solving an equation. Homework Help ✎

Write an equation to solve the problem.
first number = x
second number = x + 1
third number = x + 2
x + (x + 1) + (x + 2) = 138

Add like terms.
3x + 3 = 138

Solve for x.
3x = 135
x = 45