Crayton657
Crayton657 Crayton657
  • 06-08-2015
  • Mathematics
contestada

Solve the following system of equations: -2x + y = 1 -4x + y = -1
a. (3, 1)
b. (-1, 3)
c. (-1, -3)
d. (1, 3)

Respuesta :

rifaa rifaa
  • 06-08-2015
With Elimination system:
Substract -4x + y = -1 with -2x + y = 1
and... the result: 2x = 2, so x = 1

Subtitution: -2x + y = 1
⇔-2 . 1 + y =1
⇔ -2 + y = 1
⇔y = 3

The final answer is D ( 1, 3)
Answer Link

Otras preguntas

Why was the bataan death march considered a war crime?
A(n) ______ is the smallest unit of an element that maintains the properties of that element. Question 2 options: molecule nucleus atom particle
Write 2/3 as a percent. Round your answer to the nearest tenth of a percent.
the bakers at healthy bakery can make 270 bagels in 10 hours. how many bagels can they bake in 19 hours? what was the rate per hour?
Which of the following is equivalent to 34? 7 12 64 81
How do collective nouns differ from plural nouns
What is the central idea of this paragraph
How to find dy/dx of the function y=x^(1/x) using logs and implicit differentiation?
seven more than the product of a number and 5 equals 9. use variable x for the unknown number
How did workers respond to the rise of industrialization?