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

What organization did Clara Barton found in the United States?A) the Underground Railroad B) the Office of Veteran Affairs C) the American Coloniza

Please Help ASAP ThankYouWhat is the midpoint of EC?

how would non secretion of of saliva effect digestion of food in the mouth.

Earth has a radius of 6371 kilometers. A pilot is flying at a steady altitude of 6.6 kilometers above the earth's surface. What is the pilot's distance to the h

In August of 1974, President Nixon resigned and his Vice President, Gerald Ford, took over as president. In 1976, Ford would have to compete in an election to k

Which two values of x are roots of the polynomial below x^2 - 11x + 13

suppose the president vetoes a law. In this case, which branch of government is applying a check? Which branch is being checked?

In August of 1974, President Nixon resigned and his Vice President, Gerald Ford, took over as president. In 1976, Ford would have to compete in an election to k

Which option is true when you expand the binomial expression (x+y)^5

An increase in a body of waters temperature caused by adding warmer