Answer:
Solution = (2, 1.5)
Explanation:
Step 1: Solve for y in 6x - 4y = 18
1. 6x - 4y = 18 → -4y = -6x + 18 → y = 1.5x - 4.5
Step 2: Substitute 1.5x - 4.5 for y in -x - 6y = 7
2. -x - 6(1.5x - 4.5) = 7
Step 3: Solve for x
3. -x - 9x + 27 = 7 → -10x + 27 = -20 → -10x = -20 → x = 2
Step 4: Substitute 2 for x in -x - 6y = 7
4. -(2) - 6y = 7
Step 5: Solve for y
5. -2 - 6y = 7 → -6y = 9 → y = -1.5
Hope this helps you out :)