Question

3x+7y=-3 -x-7y=1 solve using elimination

Answer 1

Answer:

x = 1 - 14y

Step-by-step explanation:

1. I will solve for x.
2. We have 3x + 7y = -3 - x - 7y = 1
3. Add the -x on both sides.
4. 4x + 7y = -3 - 7y = 1
5. Add the 7y on both sides.
6. 4x + 14y = -3 = 1
7. Add the -3 to the 1.
8. 4x + 14y = 4
9. Divide by 4 (from the 4x) on both sides.
10. x + 14y = 1
11. Subtract the 14y.
12. x = 1 - 14y

If I am incorrect in my reasoning, please let me know so that I can plan better for my future answers. Have an amazing day.