IDNLearn.com provides a user-friendly platform for finding answers to your questions. Join our Q&A platform to receive prompt and accurate responses from knowledgeable professionals in various fields.
Answer:
4th option
Step-by-step explanation:
From
- x - 2y = - 4 ( add x to both sides )
- 2y = x - 4 ( add 4 to both sides )
- 2y + 4 = x , so
Substitute x = - 2y + 4 into the second equation