Question

Which variable will you choose to eliminate? How?

8x + 3y = -7
7x + 2y = -3?

I need to show the work Can someone please help?
Thank you

Answer 1

• Variable elimination

1. 8x+3y=-7
2. 3y=-8x-7
3. y=-8/3x-7/3

• Now plug it into y
• 7x-16/3x-14/3=-3
• 5/3x-14/3=-3
• 5/3x=5/3
• x=1