tarynmanns11 tarynmanns11
  • 17-04-2021
  • Mathematics
contestada

Solve each system of equations by adding.

Solve each system of equations by adding class=

Respuesta :

ashwineedadool24
ashwineedadool24 ashwineedadool24
  • 17-04-2021

Answer:

3.  x+y = -1

    x-y = 7

(x+x+y-y) 2x=6

x=3

4. 2x+2y = -2

   3x-2y = 12

(2x+3x+2y-2y) 5x=-2+12

5x=10

x= 2

5. 6x+5y = 4

  -6x+7y = 20

(6x-6x+5y+7y)= 4+20

12y=24

y=2

Answer Link

Otras preguntas

What are the organelles of a cone cell?
Ned weighs 1.5 times as much as Jill and Tom weighs 15 kilograms more than Jill. If their combined weight is 190 kilograms, how much does each person weigh?
What are the organelles of a cone cell?
write a program in pascal to solve a quadratic equation
Caitlyn did 6/7 of the problems on her math correctly and 4 incorrectly. She did all the problems. How many were there?
write a program in pascal to solve a quadratic equation
what is E=m² the famous theory of albert einstien?
Name four behaviors that animals must use to survive
2 m3 of soil containing 35% sand was mixed into 6 m3 of soil containing 15% sand. what is the sand content of the mixture?
Name four behaviors that animals must use to survive