Question

Choose the equation that could be used to find two consecutive integers whose sum is 67.

n + (n + 2) = 67

n − (n + 1) = 67

n + n = 67

n + (n + 1) = 67

Answer 1

guess and check

Answer 2

i bet you could guess it on the first try

Answer 3

the reason that the answer is n+(n+1)=67 is this:

lets say that the two numbers are x and y so the question is asking us to find two numbers that make

x+y=67 true

but they also tell us that

y=x+1

so if we substitute:

we get

x+(x+1)=67 replace, x with n and you have your answer

Answer 4

let me be quiet.