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Algebra / Linear equations in one variable Difficulty: Easy

If 2 x + 3 = 9 , what is the value of 6 x - 1 ?

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Explanation

The correct answer is 17 . It’s given that 2x+3=9. Multiplying each side of this equation by 3 yields 32x+3=39, or 6x+9=27. Subtracting 10 from each side of this equation yields 6x+9-10=27-10, or 6x-1=17. Therefore, the value of 6x-1 is 17 .