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is less than twice a number.Find the unknown number.
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Q. is less than twice a number.Find the unknown number.
- Identify Operation & Relationship: Identify the operation and relationship: ＂ less than＂ means subtraction, ＂twice a number＂ means times a variable, let's call it .
- Write Expression for Twice: Write the expression for ＂twice a number＂ which is .
- Subtract from Twice: Subtract from ＂twice a number＂ to get ＂ less than twice a number＂, so it's .
- Set Equation Equal to : Set the expression equal to to form the equation: .
- Add to Isolate Term: Add to both sides to isolate the term with the variable: .
- Simplify Both Sides: Simplify both sides: .
- Divide Both Sides: Divide both sides by to solve for x: .
- Calculate Value of x: Calculate the value of x: .
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