SOLUTION: Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this.
3x + 7y = 77
-2x + 7y = 42
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Coordinate Systems and Linear Equations
-> SOLUTION: Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this.
3x + 7y = 77
-2x + 7y = 42
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Question 590202: Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this.
3x + 7y = 77
-2x + 7y = 42 Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! (1)
(2)
Subtract (2) from (1)
(1)
(2)
Plug this back into (1) or (2)
(1)
(1)
(1)
(1)
The solution is (7,8)
check:
(2)
(2)
(2) OK
