binette
binette
27-09-2017
Mathematics
contestada
Solve each system by elimation 2x-3y=6 and 6x-9y=9
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texaschic101
texaschic101
27-09-2017
6x - 9y = 9....divide everything by 3
2x - 3y = 3
-3y = -2x + 3
y = 2/3x - 1....slope is 2/3, y int is -1
2x - 3y = 6
-3y = -2x + 6
y = 2/3x - 2...slope is 2/3, y int is -2
same slope, different y int means parallel lines means no solutions
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