greenlollipop3
greenlollipop3 greenlollipop3
  • 20-11-2018
  • Mathematics
contestada


Help....

solve, using linear combination.

3x - y = 4
2x + y = 6

a. ( 3, 0 )

b. ( 0, -4 )

c. ( 2, 2, )

d. ( -1, -7 )

Respuesta :

aalliitmnt aalliitmnt
  • 20-11-2018
add the 2 equations
3x+2x-y+y=4+6
5x=10
x=2
now that we know x we can sub it back in one of the fisrt equations that we had
3×(2)-y=4
6-4=y
y=2
so the answer is C
Answer Link

Otras preguntas

Divide $3,300 into three parts whose ratio is 1:3:7.
Which of these factors affect a person’s Blood Alcohol Concentration? Check all that apply.1 gender2 body mass3 blood type4 age5 race
Whih of the Following is a risk of smoking
What are the results of poor working conditions in Russia?
Which is greater 100 in or 3 yd 1 ft
Which country launched the first satellite into outer space? a-the Soviet Union b-Great Britain c-Germany d-the United States
HELP ME PLS, I'M BEGGING U!!!!!!! GEOMETRY QUESTION!!!!!!
Ryan is 69 years younger than Sophia 4 years ago Sophia's age was four times Ryan's age how old is right now
Can someone please help me with this? I've been staring at this question for days now... Find the value of x. Round to the nearest tenth. The diagram is not dra
BRAINLIEST to best answer (: