fisherjake510 fisherjake510

01-08-2017
Mathematics

contestada

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

Respuesta :

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

(28÷4)+3+6x5 tell accordingly the correct answer will be marked as brainliest answer

Section 2: Extended Writing (30 points) In this section, you will show your knowledge of the content by constructing a three-paragraph essay. Remember to use ex

Is computer doing more good than harm or more harm than good

What is open source software

833.30/ 1-(1+0.00833)^-360

1. Under which type of law would a dispute concerning copyrights be addressed? common law contract law civil law statutory law 2. A neighbor hires his son’s fri

The coordinate grid shows points A through K. What point is a solution to the system of inequalities? y < −2x + 10 y < 1 over 2x − 2 coordinate grid with

An american summer in chapter 5, how do peter nikeas' experiences reveal a potential for loss of hope for chicago/ its people? how and why does peter continue d

How many moles of h+ ions are present in 2.8 l of 0.25 m hydrobromic acid solution?

summarization assignment: imagine that while flipping through a new textbook you see that it spends a lot of time discussing experiments with rats and pigeons.