28-01-2016
Mathematics

contestada

solve 2(3b-4)=8b-11

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Аноним Аноним

28-01-2016

6b - 8 = 8b - 11
11 - 8 = 8b - 6b
3 = 2b
b = 3/2 = 1.5

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Billymkhoi Billymkhoi

28-01-2016

2(3b-4)= 8b -11
⇒ 2*3b -2*4= 8b -11 (distributive property)
⇒ 6b -8= 8b -11
⇒ -8+ 11= 8b -6b
⇒ 3= 2b
⇒ 3/2= b
⇒ 1.5= b

Final answer: b=1.5~

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