asdblett1eB1eeghan asdblett1eB1eeghan

17-08-2016
Mathematics

contestada

what is the value of the x variable in the solution to the following system of equations? 2x 2y = 6 x 3y = −1 a. −2 b. 2 c. 5 d. −5

Respuesta :

nobillionaireNobley nobillionaireNobley

20-08-2016

2x + 2y = 6 . . . . . (1)
x + 3y = -1 . . . . . (2)

(1) x 3 => 6x + 6y = 18 . . . . . (3)
(2) x 2 => 2x + 6y = -2 . . . . . (4)

(3) - (4) => 4x = 20
x = 20/4 = 5

Answer Link

Otras preguntas

A zygote is related to a blastocyst by the process of

locate and label the following fractions on the number line.

Which of the following statements apply to the variation in human skin color?

What is the identity of a sample that has a volume of 1.96 cm3 and a mass of 17.6 g? zinc copper lead silver

How did Andrew Jackson respond to the Worcester v. Georgia?

How did the arrival of European settlers on the east coast of North America impact the Native Americans? (USH1 a, b, d)

What should descriptive writing aim to do??

Risk is generally considered only a paper gain or loss.

15 points ;) which element has a higher ionization energy oxygen or nitrogen? explain,

Listen to the falling rain is what sentence type