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Mathematics
Blanche
20 January, 13:36
6x - 4y = - 5
4x + 5y = - 11
+3
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1
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Yareli Thomas
20 January, 16:15
0
x = - 1.5, y = - 1
Step-by-step explanation:
6x = - 5+4y
x = (-5+4y) / 6
4 ((-5+4y) / 6) + 5y = - 11
4 (-5+4y) + 5*6y = - 11*6
-20+16y+30y = - 66
16y + 30y = - 66+20 = - 46
y (16 + 30) = - 46
y = - 46 / (16 + 30)
y = - 46 / 46
y = - 1
x = (-5+4 (-1)) / 6
x = (-5-4) / 6
x = - 9 / 6
x = - 1.5
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