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shutvik [7]
3 years ago
10

Double the sum of a number and three is the same as the number subtracted by nine

Mathematics
1 answer:
OleMash [197]3 years ago
4 0

Answer:

2(n+3) = n-9

Step-by-step explanation:

2(n+3) = n-9

Step 1: Multiply (n+3) by two; 2n + 6

Step 2: Subtract n on both sides; n+6= -9

Step 3: Subtract 6 on both sides; n= -9 - 6

Step 4: Add -9 and -6; -15

Solution: n= -15

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The y = 40 indicates that Steve has 40 miles remaining when he starts at home. In other words, the distance from home to work is 40 miles.

The x intercept is where the diagonal line crosses or touches the x axis. The x intercept is (45,0) which represents the idea that 45 minutes have passed by. The y = 0 means that he has 0 miles left go to. Steve has reached the office at this point.

-----------------------------------------------

Answers:

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Read 2 more answers
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