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3 votes
How many solutions does the following equation have?

3x + 7 + 2x = 5x + 7
One. Many. None

User Sicco
by
7.4k points

2 Answers

1 vote

Answer: many (all real numbers)

Explanation:

1) add 2x and 3x to give you 5x

You now have 5x+7=5x+7

2) you can simplify this by subtracting 7 on both sides and dividing by 5

3) you are then left with x=x

User Atconway
by
8.3k points
6 votes

Answer:

Infinite/many

Explanation:

3x + 7 + 2x = 5x + 7

3x + 2x + 7 = 5x + 7

5x + 7 = 5x + 7

5x - 5x + 7 = 7

7 = 7

Infinite solutions

User Rana Depto
by
8.5k points

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