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3 years ago

5

If 3 is added to twice a number and this sum is multiplied by 6, the result is the same as if the number is multiplied by 5 and

4 is added to the product. What is the number?

1 answer:

BartSMP [9]3 years ago

5 0

3+2x=y
6y=5x+4
6(3+2x)=5x+4
18+12x=5x+4
14+12x=5x
14=-7x
-2=x
the number is -2

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