Question
Solve by the substitution method.
7x + 2y = -19
-5x + y = 33
What is the solution of the system?
(Type an ordered pair.)
7x + 2y = -19
-5x + y = 33
What is the solution of the system?
(Type an ordered pair.)
Answers
Reiny
-5x + y = 33 ---> y = 5x + 33
now sub that into the first equation
7x + 2y = -19
7x + 2(5x + 33) = -19
solve for x, then sub that into y = 5x + 33 to get y
now sub that into the first equation
7x + 2y = -19
7x + 2(5x + 33) = -19
solve for x, then sub that into y = 5x + 33 to get y