Answer :
Final answer:
To solve the equation 7 + 4x = 16 + x, subtract x from both sides and simplify the equation, then subtract 7 from both sides and simplify further, divide both sides by 3 to isolate x, and finally simplify to find x = 3.
Explanation:
To solve for x in the equation 7 + 4x = 16 + x, you need to isolate the variable x on one side of the equation. Start by subtracting x from both sides: 7 + 4x - x = 16. Simplifying this equation gives us 7 + 3x = 16. Next, subtract 7 from both sides: 7 + 3x - 7 = 16 - 7. This simplifies to 3x = 9. Finally, divide both sides of the equation by 3: (3x) / 3 = 9 / 3. This gives us x = 3.
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