Question

Find the smaller of two

consecutive integers, x, if the
sum of the smaller and the
larger is 15. Write an equation
and solve.

Answer 1

Let x be the smaller integer. The larger integer is x + 1.
The sum of the two integers is 15, so we can write the equation:
x + (x + 1) = 15
2x + 1 = 15
2x = 14
x = 7
The smaller of the two consecutive integers is 7