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Mathematics
Mariela Perkins
14 October, 09:05
Solve the system
x - 2y = - 6
3x + y = - 4
+5
Answers (
1
)
Belinda Richard
14 October, 11:24
0
{x-2y=-6
{3x+y=-4 / * 2
{x-2y=-6
{6x+2y=-8 (+)
7x=-14 / : 7
x=-2
3x+y=-4
3 * (-2) + y=-4
-6+y=-4
y=2
Solution: (-2; 2)
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