# College Algebra Question?

I need help with this algebra problem solving question and I need for someone to explain how to do the problem instead of just telling me the answer. Thank you I really appreciate it.

PROBLEM: The apartments in joan's apartment house are consecutively numbered on each floor. the sum of his number and his next door neighbors number is 1419. What are the two numbers?

### 7 Answers

- sfroggy5Lv 61 decade agoBest Answer
consecutive numbers go in order 1, 2, 3, 4 so on

so if Joan's apartment is x

the apartment next door is x + 1

so

x + x + 1 = 1419; combine like terms

2x + 1 = 1419

2x = 1418; divide by 2

x = 709

so one apartment is 709 and the next one is 710

Source(s): I teach my 7th graders to answer these type of questions - 1 decade ago
you would divide by 2 because the numbers are consecutive

1419/2 = 709.5

since the houses are consecutive numbers, round up and down for both numbers.

709 and 710.

709 + 710 = 719

- binksLv 61 decade ago
Well, you know that the two rooms are next to eachother, numbered consecutively, therfore telling us that they are one off.

Divide 1419 by 2 = 709.5. - Round up and down to the nearest integers. Then, you know that the two numbers are 709 and 710.

Source(s): AP Stats, years of Math - 1 decade ago
Which side is his next do neighbour? If we take his number to be n, it could be n+(n+1), or n+(n-1)= 1419.

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- hurdleLv 43 years ago
Your placement attempt would not qualify you to get into an more suitable lever of Math so which you will could take the pre-algebra in the past you could verify in for a Math that's tranferable to a school. See a councelor.

- 1 decade ago
try using this approach:

x+y=1419

x+1=y

then do....

x+1=y = x-y=-1

try solving it from there by taking the two equalities, now

x+y=1419

x-y=-1

...using substitution.