Answer:
a = -2
Step-by-step explanation:
-(5a+6)=2(3a+8)
-5a -6 = 2*3a +2*8
-5a -6 = 6a +16
-5a -6a = 16+6
-11a = 22
a= -22/11
a = -2
18sqrt(15)
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Your collection's mean answers
median - 1930
range - 54
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mean absolute devitation - 23.75
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range - 15
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