kendramiller8551 kendramiller8551

01-03-2018
Mathematics

contestada

Solve the following system of equations by using the substitution method.
x = y + 3
2x + y = 9

(4, 1)

(5, 2)

(3, -2)

Inconsistent

Respuesta :

WaleMaths WaleMaths

04-03-2018

x = y + 3
2x + y = 9

Solution..
---------------

Substitute for x=y+3 in the second equation...

2x+y = 9

2(y+3)+y=9

2y+6+y=9
3y+6=9
3y=9-6
3y=3
y=3/3
y=1....

Substitute for y=1 in the first equation...

x=y+3

x = 1+3
x=4..

Am sure the answer is quite evident now...

Answer Link

Otras preguntas

write 7/5 as a decimal

sketch a 3 by y square. Find its area in terms of y show your reasoning

the score is 90 percent and 70 questions what is the numbers correct

in which of the following sentences is the underlined word a past participle A) she would (like) to join us. B) We (helped) Joan to pack her things. C) Jenna h

You are watching the evening news and you see protestors walking around with signs proclaiming their dislike for bill S254. You are not sure what the bill says,

Who is responsible for reporting identity fraud? Choose one answer. a. The victim of fraud b. The police c. Any of the three credit reporting agencies d.

give an example of 4 type of movable joint and describe the type of action which the joint permits.

Why are concentration gradients important to cells

A popular type of character who displayed American common sense by outwitting sophisticated foreigners was called the _____. American rube hometown boy stage Ya

In what order does the plot of a fictional story typically progress? Tiles climax denouement exposition rising action falling action