X+5y=1;2x+3y=9 In the your turn section. If you were to isolate the top equation for variable x, what would be the new equivalent equation you could use to solve the system by substitution?

and pls say why Im confused

To complete your spring schedule, you must add calculus and physics. at 9: 30, there are three calculus sections and two physics sections; while at 11: 30, there are two calculus sections and three physics sections. how many ways can you complete your schedule if your only open periods are 9: 30 and 11: 30?

If f(x)=2x-6 and g(x)=3x+9, find (f-g)(x)

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?