fisherjake510 fisherjake510
  • 01-08-2017
  • Mathematics
contestada

Solve the system using elimination. x + 2y = –6 3x + 8y = –20

Respuesta :

texaschic101
texaschic101 texaschic101
  • 01-08-2017
x + 2y = -6....multiply by -3
3x + 8y = -20
---------------
-3x - 6y = 18 (result of multiplying by -3)
3x + 8y = -20
--------------add
2y = -2
y = -2/2
y = -1 <===

x + 2y = -6
x + 2(-1) = -6
x - 2 = -6
x = -6 + 2
x = -4 <==

solution is (-4,-1)
Answer Link

Otras preguntas

what is 41393415 in kg?
Can someone please help, ty!! Will mark brainliest!
Can y’all pwease hwelp mwe I weally need hwelp
If a strategic plan is failing to meet its objectives, but the company's execution is deemed sufficient, management should first Multiple choice question. recon
In the laboratory a student combines 47.8 mL of a 0.321 M aluminum nitrate solution with 21.8 mL of a 0.366 M aluminum iodide solution. What is the final concen
1. The Nuremberg laws are best described as
Abiotic factors, like water, are critical to most food chains. True or False?
Circle all the things that are true both of single celled organisms and cells that are part of a multi-celled organism.a. growb. reproducec. use energyd. get th
A barber shop was charging $4.15 for a bottle of shampoo but raised the price 23%. The new price after the increase is $5.10. Enter an expression to show how th
Containment was a Cold War policy designed to prevent the spread of