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6 May, 15:37

How many solutions does this equation have?

(15x + 21)

3

= 5x + 7

+1
Answers (1)
  1. 6 May, 15:53
    0
    Your equation is unclear. Do you mean the following:

    (15x+21) / 3=5x+7 or 3 (15x+21) = 5x+7

    If the left equation is the correct one, the left side simplifies to 5x+7=5x+7, which must mean all real numbers are correct solutions. Thus, it has infinite real solutions.
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