Well, isn't that a happy little math problem we have here! To find out what x is, we can simply subtract 3 from both sides of the equation. So, x equals 4! Just like painting a beautiful landscape, sometimes all it takes is a few gentle brushstrokes to reveal the hidden beauty within.
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Oh, dude, that's like basic math. So, if you have x plus 3 equals 7, you just subtract 3 from both sides to isolate x. You get x equals 4. Easy peasy lemon squeezy!
To solve the equation x + 3 = 7, you would first subtract 3 from both sides to isolate the variable x. This gives you x = 4. Therefore, the solution to the equation is x = 4.