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Mathematics
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3 September, 23:17
4x + y = 6
-5x - y = 21
+5
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1
)
Trinity Thomas
4 September, 02:22
0
Step-by-step explanation:
Adding equation 1 and 2 we have
-x=27
Therefore x = - 27
Substituting the value of x into equation 2 we have
-108+y = 6
y = 114
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