Question

Express 169 as the sum of two consecutive number

Answer 1

let one of the number is x

another number will be x+1 coz its consecutive

now

x+x+1 = 169

2x = 168

x = 84

another number is 84+1 = 85

84 and 85 are the numbers

Answer 2

Let
n
=
the smaller of the two integers, then
n
+
1
is the greater of the two integers. The sum of the two integers is:
n
+
(
n
+
1
)
=
169
Combine like terms:
2
n
+
1
=
169
Subtract 1 from both sides:
2
n
=
168
Divide both sides by 2:
n
=
84
Then
n
+
1
=
85
check:
84
+
85
=
169
169
=
169← this checks