SOLUTION: solve the system of equations using the substitution method. If the answer is a unique solution, present it as an ordered pair: (x,y). If not specify whether the answer is no solut
Algebra ->
Linear-equations
-> SOLUTION: solve the system of equations using the substitution method. If the answer is a unique solution, present it as an ordered pair: (x,y). If not specify whether the answer is no solut
Log On
Question 217120: solve the system of equations using the substitution method. If the answer is a unique solution, present it as an ordered pair: (x,y). If not specify whether the answer is no solution or infinite many solutions.
-3x + y = 1
5x +2y = -4 Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! solve the system of equations using the substitution method. If the answer is a unique solution, present it as an ordered pair: (x,y). If not specify whether the answer is no solution or infinite many solutions.
-3x + y = 1
5x +2y = -4
----------------
Multiply thru the 1st equation by 2 to get:
-6x + 2y = 2
-------------------
Subtract that eq. from the 2nd equation to get rid of the "y-terms":
11x = -6
x = -6/11
-------------------
Substitute that into -3x + y = 1 to solve for "y":
-3(-6/11)+ y = 1
18/11 + y = 11/11
y = -7/11
=================
Cheers,
Stan H.
(