Question

How do you solve -2n + 10 - 5n = 17, and what's the answer?

a) n = -7
b) n = 7
c) n = -3
d) n = 3

Answer 1

To solve the equation -2n + 10 - 5n = 17, we combine like terms, subtract 10 from both sides, and then divide by -7 to get n = -1, which isn't listed in the provided options.

Step-by-step explanation:

To solve the equation -2n + 10 - 5n = 17, we should first combine like terms. Combining the n-terms, we get:

-2n - 5n + 10 = 17

This simplifies to:

-7n + 10 = 17

Next, we isolate the n-term by subtracting 10 from both sides:

-7n = 7

Finally, we solve for n by dividing both sides by -7:

n = -1

So the solution is n = -1, which is not listed among the options provided. Therefore, there might have been a typo in the options, or the student made a mistake copying the question.