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LUCKY_DIMON [66]
3 years ago
7

2(x−3)=8(x−6) what is x?

Mathematics
2 answers:
uysha [10]3 years ago
4 0

Answer: x = 7

Step-by-step explanation:

2x - 6 = 8x - 48

+48

2x + 42 = 8x

-2x

42 = 6x

/6

7 = x

balu736 [363]3 years ago
4 0

Answer:

x=7

Step-by-step explanation:

2(x-3)=8(x-6)

2-6=8x-48

2x-8x=-48+6

-6x=-42

x=7

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Discussion:


A plane triangle has 180 degrees. Using this in the diagram gives  

x + 81 + angle BAC = 180             (***)

(The diagram is a bit fuzzy but I think the above numbers are accurate)

The diagram also shows that  (156 + angle BAC )= 180 as a straight line has 180 degrees. So

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