Question

Solve by the linear combination method (with or without multiplication).

x + y = 100
0.07x + 0.05y = 5.8




A.


(20, –50)


B.




(50, 50)




C.


(10, 30)



D.


(40, 60)

Answer 1

Multiply the bottom by -100 and the top by 7?

Answer 2

Is it D

Answer 3

Its D

Answer 4

thanks

Answer 5

No problem

Answer 6

Thanks

Answer 7

both of you