Question

Why does the substitution method show wrong solutions, when there is no solution to the given equation ? Elimination method proves that there is no solution , but this doesn't happen with substitution method . Why ?
​

Answer 1

Step-by-step explanation:

Many questions cannot be solved with substitution method , you should stick to cross multiplication and elimination method.

Use elemination method only when it is asked in the question .

Answer 2

see the attachment hope its help you