Solve for x.

This is a basic linear equation involving variables on both sides. Begin by moving all x terms to one side and constants to the other. Subtract 2x from both sides:

x + 4 = −1.

Next, subtract 4 from both sides:

x = −5.

Therefore, option C is correct. Option D would be correct only if the constant were mishandled. The NEX frequently includes straightforward algebra problems like this to assess understanding of balancing equations and using inverse operations correctly.

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