What is the answer to 6x+15=3x+8

Mathematics

1 answer:

miskamm [114]4 years ago

6 0

Answer:

x = -7/3

Step-by-step explanation:

6x+15=3x+8

Subtract 3x from each side

6x-3x+15=3x-3x+8

3x+15 = 8

Subtract 15 from each side

3x+15-15 = 8-15

3x=-7

Divide each side by 3

3x/3 = -7/3

x = -7/3

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kvv77 [185]

9514 1404 393

Answer:

4 2 6 1 7 or 1 2 4 3 7

Step-by-step explanation:

4 are correct of 1,3,4,6,7

3 are correct of 0,2,3,6,7

1 is correct of 0,3,6,8,7 -- so not both 3 and 6, meaning 1, 4, 7 are correct

Correct digits so far are 1, 4, 7 and one of {3, 6}. Line 2 tells another is 0 or 2; line 3 tells it is not 0. This adds 2 to the list of correct digits.

This makes the correct digits 1, 2, {3, 6}, 4, 7. We don't know whether the last digit is 3 or 6.

Looking at digits correctly placed, line 2 tells us the code is either ...

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Then line 1 fills in those blanks as ...

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Either of these codes agrees with all of the clues.

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ANTONII [103]

i think it's just simply y - 7 ?

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