Two occupations predicted to greatly increase in number of jobs are pharmacy technicians and network systems and data communication analysts. The number of pharmacy technician jobs predicted for 2003 through 2014 can be approximated by 7.4x-y=-254 The number of network and data analyst jobs for the same years can be approximated by 12.4x-y=-231. For both equations, x is the number of years since 2003 and y is the number of jobs in thousands.

a. Use addition method to solve the following system of equations

{7.4x-y=-254
{12.4x-y=-231

The solution, rounded to the nearest whole number is: ?

Pls help!!!