Question 990058
.
{{{system (x+y = 437,
x-y=145)}}}.


Add the first and the second equations. You will get


2x = 437 + 145 = 582.


Hence, x = {{{582/2}}} = 291.


Now, substitute this value of x into the second equation to find y. You will get 


291 - y = 145.


Hence, y = 291 - 145 = 146. 


<B>Answer</B>. x = 291, y = 146.