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Jayleen
Mathematics
13 April, 23:18
Y=-x/2-10
-2x-y=5
substitution
+1
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1
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Jordon Villa
13 April, 23:45
0
Put 1st equation into second
-2x - (x/2 - 10) = 5
-2x - 1/2x + 10 = 5 combine like terms
-2.5x + 10 - 10 = 5 - 10
-2.5x = - 5 divide both sides by 2.5
x = 2
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