dakmun11 dakmun11
  • 07-01-2020
  • Mathematics
contestada

-7x - 2y = 19
4x + y = -12
Solve the system

Respuesta :

alishedd83
alishedd83 alishedd83
  • 07-01-2020

-7x - 2y = 19

4x + y = -12

Set y equal to each other (opposite signs are fine and you could also set x equal instead of y)

-7x - 2y = 19

8x + 2y = -76

Add equations together

x = -52

Plug x value into an equation

4(-52) + y = -12

Solve for y

-208 + y = -12

y = 196

Hope this helps! ;)

Answer Link

Otras preguntas

help plz 25 pts due i five mins
What do the wavy lines stand for with a ATP model???
HURRY The depth of the box is 2 inches. How much cardboard is needed to create the box?
What do names symbolize In Hello, My Name is by Jason Kim?
During winter what change will you see in the daylight hoursA. There will be more daylight hoursB. The daylight and nighttime hours will be the sameC. There wil
what do we know about the life of King Tut from the artifacts found in his tomb?
What is your idea of success?
where do the ones on the left go?
) A camp commandant estimates that he has enough food for 8 meals for 140 boys. If 84 more boys arrive, how many meals can he supply to each boy?​
how do ion-ion bonds, ion-dipole bonds and van der wall forces affect boiling or melting of substances?