3 years ago

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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