babycakes201220150 babycakes201220150
  • 03-10-2021
  • Mathematics
contestada

3x -4y= -20 -x +2y =10 whats the value of y

Respuesta :

soccerfan54 soccerfan54
  • 03-10-2021
3x-4y=10
-20-x+2y=10 then -30+2y=x now plug this in the other equation:
3(-30+2y)-4y=10
-90+6y-4y=10
2y=100
y=50
Answer Link

Otras preguntas

the product of 4 and a number x is at least 21
Need to write a 200-word essay on the death penalty. Is it too harsh or not. Any ideas?
What's 47/3 as a mixed number
which of the following marked the achievement of a long-held suffragist goal in the early 1900s ?
How would I solve 36-7(2) And what would be the answer for this problem
Point t bisects uv. find uv if ut = 4 1/2 yards
what are positive and negative effects about industrialization?
what happens if you can't remove a splinter
What is 30,000 is 10 times as much as
Which Boundary can produce volcanoes