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 is not an example of an on-the-page question? A. Where? B. When? C. How much? D. Why?

x2 - 12x - 28 What is the factor

3b + 7b with b = 4 Please answer :)

What describes a step that each former confederate states had to take to gain readmission to the Union

what period of time led americans to expand the united states from the atlantic ocean

Swifty Corporation is constructing a building. Construction began on January 1 and was completed on December 31. Expenditures were $6340000 on March 1, $5260000

How does soliloquy differ from an aside

what order do these go in: increased social control occurrence of a turning point weighing the costs and benefits of leading a criminal life structured lifesty

For each item described: Identify the type of account (Asset, Liability, Equity, Revenue or Gain, Expense or Loss), normal balance (Debit, Credit), financial st

The Peppered moth is white with black spots, which helps it blend in with the bark on beech trees. The burning of coal in Great Britain caused many beech trees