x + 2y = 3
3x - 2y = 5
What is the solution to the system of equations?
A) (4, 3.5)
B) (2, 1/2)
C) (2, -1)
D) (1/2, 2)

Question

01-03-2017
Mathematics

contestada

x + 2y = 3
3x - 2y = 5
What is the solution to the system of equations?
A) (4, 3.5)
B) (2, 1/2)
C) (2, -1)
D) (1/2, 2)

Respuesta :

Otras preguntas

Which territory was controlled by great britain in the years following world war i and lost land when the nation of israel was created in 1948?.

The attitude of a writer toward the subject and the audience is called the writing's A. style. B. tone. C.word choice. D. formality.

1. Explore the summary titled Hate Crime Victimization, 2005-2019. What does this summary state about the rate of violent hate crime in 2005 in comparison to th

How is this excerpt important to the poem as a whole? It introduces the problem the speaker has playing his baseball position. It shows why the speaker does not

ASAP!!! Explain: Why do black lines appear on the absorption spectrum of the sun?

what intermolecular forces are in c2h5nh2?

Why is it impossible for a solution to become both more basic and more acidic at the same time? A. An increase in H+ concentration will decrease OH- concentrati

gregory the great is good or bad

PLS HELP ME WITH THIS IM GOING TO LOSE THE YEAR!!

AlexisAPinette AlexisAPinette · Answer 1 · 2017-03-01T16:32:32+01:00

AlexisAPinette AlexisAPinette

01-03-2017

You could plug them all in... but a faster way:

add the 2 equations together.

You would get:
4x = 8 (the 2y and -2y cancel out)
x = 2

Plug x back into one of the equations.
x + 2y = 3
2 + 2y = 3
2y = 1
y = 1/2

So... B (2, 1/2)

Answer Link

x + 2y = 3 3x - 2y = 5 What is the solution to the system of equations? A) (4, 3.5) B) (2, 1/2) C) (2, -1) D) (1/2, 2)

Respuesta :

Otras preguntas

x + 2y = 3
3x - 2y = 5
What is the solution to the system of equations?
A) (4, 3.5)
B) (2, 1/2)
C) (2, -1)
D) (1/2, 2)