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

How to get an associate degree in illustration?
Ramon bought a bicycle for $478. The value of the bicycle is expected to decrease at a rate of 6.5% each year. What function equation represents the value of t
Where is an absolute value function not differentiable?
Which two statements are true for the cross illustrated by this Punnet square? ( Can be more than one answer) A. The P1 generation is hybrid. B. The allele for
A person insured under a health policy is required to give the insurance company a notice of claim within how many days after a covered loss?
What does the hypodermis do
What is the value of t in the equation t+5=-25
What is copyright and why is it important? select all that apply?
The passage below is an excerpt from the Fourteenth Amendment: No State shall make or enforce any law which shall abridge the privileges or immunities of citiz
In lord of the flies, what is the islands significance to the story?