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3 years ago

10

when 1 is added to a number and the answer is trebled , it gives the same result as doubling the number and then adding 4, find

the number.

1 answer:

Phoenix [80]3 years ago

7 0

X - the number
3(x+1)=2x+4
3x+3=2x+4
3x-2x=4-3
x=1

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