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How many solutions does the equation -3y + 3y + 4 = 4 have ?

User Eric Chao
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2 Answers

2 votes

Answer: none

Explanation:

User Kalisky
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3 votes
Good evening.

Let's subtract 4 from both sides and simplify the -3y + 3y:


\mathsf{-3y+3y+4-4=4-4}\\ \\ \mathsf{(-3+3)y = 0}\\ \\ \mathsf{0y=0}

Any value for y will make this sentence valid. Therefore, the equation has infinite solutions.
User Vanboom
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