Question

The entire state of Montana has just one telephone area code. The same is true for Idaho. The sum of their area code is 614 and the difference is 198, and Montana has the numerically larger one. Fine the area code of each of these states.

Answer 1

let the area code of Montana be X and the area code of Idaho be Y .
X + Y = 614 - ( 1 )
X - Y = 198 - ( 2 )
by adding both ( 1 ) and (2 )
2 X = 812
X = 406
by substituting the value of X in eq . ( 2 )
X - Y = 198
406 - Y = 198
Y = 208

Answer 2

Step-by-step explanation:

y = 406

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