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Answer:

Explanation:
→ We want to solve this equation:

◼ Simplify the left side:

◼ Subtract 29 from both sides:

◼ Simplify both sides:

◼ Divide both sides by 9:

◼ Simplify both sides:

Conclusion:
The solution of the equation 8x + 29 + x = 11 is -2.