find two consegutive intgers whose sum is 45

Question

show all 5 steps 

 

1,)label the unknowns

2,)set up the equaton

3.)solve equation 

4.)find the valuse fro the unknows 

5.)check

 

 

Answer 1

You can actually guess this one:  22 + 23 = 45

 

If you need to see an algebraic solution,

 

n + (n + 1) = 45

 

2n + 1 = 45

 

n = (45 - 1)/2 = 22

 

The 2 integers are 

 

n = 22

n + 1 = 22 + 1 = 23

 

 

Answer 2

n + n+1 = 45