Solve the following system of equations by substitution or elimination. 2x- y = - 1 y = - 2x Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. There is one solution. The solution of the system is. (Simplify your answer. Type an ordered pair.) OB. The solution set of the system is {(x,y) 2x - y = - 1}. O C. The solution set is Ø.
Solve the following system of equations by substitution or elimination. 2x- y = - 1 y = - 2x Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. There is one solution. The solution of the system is. (Simplify your answer. Type an ordered pair.) OB. The solution set of the system is {(x,y) 2x - y = - 1}. O C. The solution set is Ø.
Chapter4: Systems Of Linear Equations
Section4.3: Solve Mixture Applications With Systems Of Equations
Problem 4.54TI: Translate to a system of equations and solve: Anatole needs to make 250 milliliters of a 25%...
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Transcribed Image Text:Solve the following system of equations by substitution or elimination.
2x- y = - 1
y = - 2x
Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
O A. There is one solution. The solution of the system is.
(Simplify your answer. Type an ordered pair.)
OB. The solution set of the system is {(x,y) 2x - y = - 1}.
O C. The solution set is ø.
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