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Nine less than 4 times a number is the same as twice the number increased by 11. What is the unknown number?
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Nine less than 4 times a number is the same as twice the number increased by 11. What is the unknown number?

User Selvan
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4x-9=2x+11 \\ \\ 4x-2x=11+9 \\ \\ 2x=20 \\ \\ \boxed{x=(20)/(2)=10}
User Marwan Burelle
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