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Consider this equation: 9x - 7 - 3x + 9 = x + 7 + 5x + 9. How many solutions does this equation have?

2 Answers

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Explanation:

9x - 7 - 3x + 9 = x + 7 + 5x + 9

6x + 2 = 6x + 16

2 = 16

Since 2 = 16 is false, there exist no real solutions for x.

User Brian Stewart
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4.4k points
2 votes

Final Answer: No Solution. The equation would have 0 solutions.

Steps/Explanations:

Hey there! The answer is No Solution because -7 = 7. If 7 = 7, then it would be true and have one solution, which is not the case here.

Step 1: You should cancel
9 on both sides.


9x - 7 - 3x = x + 7 + 5x

Step 2: Simplify
9x - 7 - 3x to
6x - 7.


6x - 7 = x + 7 + 5x

Step 3: Simplify
x + 7 + 5x to
6x + 7.


6x - 7 = 6x + 7

Step 4: You'll need to cancel
6x on both sides.


- 7 = 7

Step 5: Since
-7 = 7 is false, there would be no solution.

No Solution

~I hope I helped you :)~

User Gavsiu
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4.3k points