11-06-2020
Mathematics

contestada

If 4u-5v=23 and 2u+4v=-8, find the value of u+v

Respuesta :

11-06-2020

Answer:

-1

Step-by-step explanation:

4u-5v=23

-2(2u+4v=16) We multiply by -2 here to destroy u's.

4u-5v=23

-4u-8v=16 we addition both processes

-13v=39 so, v=-3

4u-5(-3)=23, 4u=8 so, u=2

u+v= -3+2= -1

Answer Link

olwe8389 olwe8389

05-07-2022

Answer:

-1

Step-by-step explanation:

i just did it and got it correct

Answer Link

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