kangamango
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 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 technological innovation has provided near-instantaneous access to information and communication?
How do I write 1.00 as a percent? (Answers only)
The ratio of girls to boys in the junior high band is 5 to 7. At the beginning of year, there were 72 students in the band. By the end of the year, the ratio of
wwe can't choose our relatives,but we can choose our friends
What event occurred on Black Tuesday? a. Unemployment reached nearly 25 percent. b. The Federal Reserve lowered interest rates. c. Investor
write the reflation ship between the value of the given digits 6s in 660
what is 13 divided by 10 5/6
The Sherman Antitrust Act imposed limitations upon which group? a. farmers c.corporations b. Congress d.small-business owners
Which two peninsulas form part of the coast of mexico
10 ounces is what fraction of a pound?