What should be subtracted from 2a+8b+10 to get -3a+7b+16? with take the number as 'a'

The sum of two numbers is 86, and their difference is 20. find the two numbers

Lv beethoven software supplies customized software to a managed healthcare system. lv beethoven software's costs for the software is $1,723,000. lv beethoven software sells the software to the healthcare system for $3,816,981.10. overhead expenses are estimated at 47% of the selling price. what is lv beethoven software's net profit to the nearest dollar?

    choose the correct definition for  extremo.  a.  end      b.  extra      c.  extract      d.  eventual