princejad princejad
  • 07-02-2020
  • Mathematics
contestada

What is the solution to this system of equations?

2x - y = 8
x + y = 4
A. (2, -4)
B. (4, 0)
C. (6, 4)
D. (12, -8)

Respuesta :

TheNoobXD
TheNoobXD TheNoobXD
  • 07-02-2020

Answer:

Answer is B. (4,0)

Step-by-step explanation:

2x - y = 8

x + y = 4

solve the equation

2x - y = 8

y = 4 - x

substitute the value of y into the equation

2x - (4 - x) = 8

solve the equation

x = 4

substitute the value of x into an equation

y = 4 - 4

solve the equation

y = 0

answer is (4,0)

Answer Link

Otras preguntas

Which of the following genotypes is homozygous dominant? tt Ff XY SS
Solve and check. Type your answer in form variable = solution. (Put your answer in the form of a mixed number in simplest form.) 16 = 2x - 1 Solution: Check: Us
Who did English nobles invite to invade Spain
A firsthand report or eyewitness account is an example of how what type of data source?
how did the colonial boycotts affect the british east india company
what is indicated by siempre-later-never-almost-always
PLEASE HELP ME!!!!! WILL MARK BRAINLIEST IF CORRECT!!!!
evaluate 4 root 9 times square root nine divided by 4 root 9 to the fifth power
what is the percent of 14536?
What factors led to the development of early civilizations mesoptamia?