LouiseE254765 LouiseE254765
  • 03-11-2022
  • Mathematics
contestada

Find the solution of the system of equations. 2x + 3y=-4 , x + 9y = 13

Respuesta :

SaahilT499326 SaahilT499326
  • 03-11-2022

(-5, 2)

1) Solving this Linear System with the method of Addition/Elimination:

2x + 3y=-4

x + 9y = 13​ x-2 Multiply the whole equation by -2

2x +3y = -4

-2x -18y= -26

--------------------

-15y= -30

15y= 30 Divide both sides by 15

y = 2

2) Plug into the simpler equation y=2

x +9y = 13

x + 9(2) = 13

x +18 = 13

x =13-18

x= -5

3) So the answer is (-5, 2)

Answer Link

Otras preguntas

sample equation with decimals
I need help with this, plz help ASAP
I NEED HELP!!! I DONT KNOW WHAT TO DO!
The maximum contaminant level of copper (Cu) in drinking water as set by the the Environmental Protection Agency (EPA) is 0.0013 g⋅L−1 . Express this concent
Look at the picture, and imagine what is happening in this scene. Which stage directions would you give to tell the actors what to do next? (man gets up to da
Write and solve an equation for : The difference between 1257 and 973 divided by 2
By newton third law of motion, we know that if a rocket ship pushes down on the ground, the ground will push back up on the rocket ship with twice as much force
A road is inclined at an angle of 5. After driving 5,231 feet along this road, find the driver's increase in altitude.
Evaluate ƒ(x) when x = -10 A. 16 B. No solution C. -7 D. -24
What was Confucian golden rule?