mariana4274 mariana4274

02-03-2021
Mathematics

contestada

What is the solution to this system of linear equations?
y - 4x=7
2y + 4x = 2
(3,1)
(1,3)
3.-1)
(-1,3)

Respuesta :

anikakinnear anikakinnear

02-03-2021

[tex]y=7+4x\\2(7+4x) +4x=2\\14+8x+4x=2\\14+12x=2\\12x=-12\\x=-1\\\\y-4(-1)=7\\y+4=7\\y=3[/tex]

(-1,3)

Answer Link

Otras preguntas

How do we use the Pythagoras theorem in "everyday life".

If 2/5 of a number is added to 1/3 of the same number ,the sum is 22. What is the number?

write in decimal form fourteen and eighty-Four hundredths

What is the answer to 12-2x6+2/2

What's the term for: unwilling to bend; unyielding

Molecular scientists can read the DNA code and compare the DNA of different organisms. This concept is used in molecular clocks to determine which of the follow

I figured out the 1st question but I do not understand the second one...please show me step by step! Thank you!

If 2/5 of a number is added to 1/3 of the same number ,the sum is 22. What is the number?

a subway train starts from rest at a station and accelerates uniformly at 1.8m/s^2 for 15 sec. then it runs at a constant speed for the next 35 sec. before dece

Solve the quadratic by factoring 2X²-2X-12=0