Algebraic Expressions, Solving For X

  • CCSS.Math.Content.HSA-CED.A.1
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1) 2x = 10

Explanation

To find the value of x, we need to solve the equation 2x = 10. By dividing both sides of the equation by 2, we get x = 5. Therefore, the correct answer is x = 5.

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Algebraic Expressions, Solving For X - Quiz

This quiz assesses the ability to solve algebraic equations for the variable X. It includes linear equations and operations with negative numbers, enhancing problem-solving skills and algebraic thinking relevant for academic progression in mathematics.

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2) -2 + x = -27

Explanation

To solve the equation -2 + x = -27, we need to isolate the variable x. To do this, we can add 2 to both sides of the equation. This will give us x = -25. Therefore, the correct answer is x = -25.

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3) 1/2x = 9

Explanation

To solve the equation 1/2x = 9, we can multiply both sides of the equation by 2 to eliminate the fraction. This gives us x = 18. Therefore, the correct answer is x = 18.

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4) 3 (2 + x) = 0
x = 2

Explanation

The given equation is 3(2 + x) = 0x = 2. However, this equation is not mathematically valid as it contains two equal signs, which is not allowed. Therefore, the correct answer is False.

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5) -x - 11 = 4
x = -15

Explanation

The given equation is -x - 11 = 4x = -15, which is not a valid equation as it contains two equal signs. Therefore, the correct answer cannot be determined based on the given information.

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6) -3/4x = 15 x = 20

Explanation

The given equation is -3/4x = 15. To solve for x, we need to isolate x on one side of the equation. To do this, we can multiply both sides of the equation by -4/3. This will cancel out the -3/4 coefficient on x, leaving us with x = -4/3 * 15. Simplifying this, we get x = -20. Therefore, the statement x = 20 is false.

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  • Nov 01, 2010
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2x = 10
-2 + x = -27
1/2x = 9
3 (2 + x) = 0x = 2
-x - 11 = 4x = -15
-3/4x = 15 x = 20
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