12-11-2014
Mathematics

Answered

How do you solve the linear equation:
3x+2y=11
7x-y=3
By using the elimination method?!

Answer :

aayushg999 aayushg999

12-11-2014

3x + 2y = 11

2(7x - y) = 2(3)

14x-2y=6

Adding both equations
3x + 2y = 11

14x-2y=6

17x=17

x=1

substitute x = 1 in any equation

3(1) + 2y = 11

2y = 8

y = 4

Solution: x=1 y=4

Answer Link

Other Questions

In 25 words or fewer, what are some of the biotic and abiotic factors in the cardinal's ecosystem?Type answer here...---Complete the questions on your study gui

Read the passage from "The Beginnings of the Maasai.""Our relationship with Enkal is essential to the tribe. Enkal is neither male nor female. The sky god is po

If decision makers have limited ability to calculate profits from all possible combinations of? Options, they are said to haveA. Pareto inefficiency. B. Bounded

The local skydiving team is buying new parachutes. The team's coach has invited all team members to make recommendations, after which he will select the success

Evaluate the expression when x=5 and y=1

As I glanced at the long chain of tables, I caught the eyes of a paleface woman upon me. Immediately I dropped my eyes, wondering why I was so keenly watched by

How many kcals does Carol burn each minute while she in on the treadmill?O 4.5kca /m O 5.5kca /m O 15kca /m O 30kca /m O 71kca /m

Solve the following problems:[tex]\[ f^{-1}(-2) = 0.5 \][/tex][tex]\[ f(-4) = -4 \][/tex][tex]\[ f\left(f^{-1}(-2)\right) = \square \][/tex]

Dense connective tissue that are randomly distributed Location:A. DermisB. Periosteum,C. Perichondrium

What is the primary reason for the development of coastal erosion? (A) Human activity (B) Wind patterns (C) Wave action and currents (D) Earthquakes

a bottle contains red marble and blue marbles. a marble is chosen at random and not replaced. then a second marble is chosen at random. determine the probabilit

given the equation of a circle x^2+y^2-10x+4y+13=0. find its center and radius. i am having trouble please help

Can you answer these? I don't understand this part either. Thanks

A hallway measuring 90 feet x 7 feet requires 1/2 a fluid ounce of cleaning solution per square foot. How much cleaning solution is required to clean the hallwa

A pot is heated on a stove . Which process causes the metal handle of them pot to also become hot?

how do i find the perimeter of the triangle with vertices at three points (0,1),(2,1), and (0,3)?

A cylinder has a radius of 30 ft and a height of 19 ft. What is the exact surface area of the cylinder?

1,352 pounds is what fraction of a short ton

A bird is flying 100 feet off the ground. Looking down at a 45° angle, it sees a mouse standing still. Approximately how far will the bird have to fly to catch

Match the sequence with the correct indicated term.1)a1 = -4, d= -9, n=202)a1 =20, d=4, n=813)a12 for 8,3,-2,...AnswersA)340B)-47C)-175D)94*PLEASE EXPLAIN*