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Alina [70]
3 years ago
15

How many solutions does this equation have? (15x + 21) / 3 = 5x + 7

Mathematics
1 answer:
Lesechka [4]3 years ago
7 0

Answer:

3*(5*x-7)-(15*x-21)=0

Step-by-step explanation:

3 • (5x - 7) -  (15x - 21)  = 0

Step  2  :

Equation at the end of step  2  :

 0  = 0

Step  3  :

Equations which are always true :

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