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Which of the following equations has a solution of x = -5?

Which of the following equations has a solution of x = -5?-example-1
User Phu
by
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2 Answers

2 votes

Answer:

C)

Step-by-step explanation:

16x - 7 = 11x - 32

16x - 11x = -32 + 7

5x = -25

x = -5

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-4x - 10 = 2x + 20

-4x - 2x = 20 + 10

-6x = 30

x = -5

User Sigi
by
4.7k points
4 votes

Final answer:

To determine which equation has a solution of x = -5, substitute x = -5 into each equation and observe if the equation holds true. Both equations A and B satisfy the condition, making option C the correct answer.

Step-by-step explanation:

To determine which of the given equations has a solution of x = -5, we can substitute x = -5 into each equation and see which equation holds true. Let's evaluate each equation:

A. 16x - 7 = 11x - 32

Substituting x = -5: 16(-5) - 7 = 11(-5) - 32 => -80 - 7 = -55 - 32 => -87 = -87

Since the equation is true, equation A has a solution of x = -5.

B. -4x - 10 = 2x + 20

Substituting x = -5: -4(-5) - 10 = 2(-5) + 20 => 20 - 10 = -10 + 20 => 10 = 10

Since the equation is true, equation B also has a solution of x = -5.

Therefore, both equation A and B have a solution of x = -5. So, the correct answer is option C. Both A and B.

User Quaternion
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