kangamango kangamango

03-01-2017
Mathematics

contestada

Solve the system of equations by substitution. What is the solution for x?
2x + y = 1
4x + 2y = -2

Respuesta :

apologiabiology apologiabiology

03-01-2017

subsituteion
solve for y
2x+y=1
minus 2x
y=1-2x
sub 1-2x for y

actualy, divide 2nd equation by 2
2x+y=-1
sub 1-2x for y
2x+1-2x=-1
1=-1
false

no solution
paralell lines

Answer Link

Otras preguntas

which of the following most closely describes one way the author of "the choice" transforms "the road not taken"? "the choice" drew on the plot from "the road n

Given the function f(x) x^2-2x/x^3 +9x^2-10x Find any holes, vertical asymptotes, and horizontal asymptotes there may be.

stuck with this one.

Read the following sentences and tell their kind. There is no shortcut to success. A. Exclamatory B. Declarative C. Imperative D. Interrogative

hlp on quiz Question 1 (4 points) __________ are actions taken to prevent the spread of disease. a)Personal precautions b)Unified precautions c)Universal pre

how many more seconds does it take to drive 1 mile at 40 miles per hour than 60 miles per hour

how did brunelleschi construct his dome without temporary wooden scaffolding?

what is the value of 5/6 divded by 1/2 helpi am bad at math

I need help anyone please help.

Which of the following events could be a threat to a state’s sovereignty at the national scale, while holding a region together at the global scale?Answer A: A