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How do you solve this linear system using elimination 2x-3y equals -2 4x plus y equals 24?
Wiki User
∙ 13y ago
2X - 3Y = -2
4X + Y = 24
-2(2X - 3Y = - 2)
4X + Y = 24
- 4X + 6Y = 4
4X + Y = 24
------------------+
7Y = 28
Y = 4
-------
insert back into one of the equations ( 4X + Y = 24 will do )
4X +(4) = 24
4X = 20
X =5
--------
check
2(5) - 3(4) = -2
10 - 12 = -2
-2 = -2
checks
I can see by inspection that the other equation checks also
Wiki User
∙ 13y ago
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