Answer:
6a = 3b + c
Step-by-step explanation:
1. Cross multiply each equation to get 7a = 6b and 5a = 2c.
2. Add the two equations: 7a + 5a = 6b + 2c
If we add the like terms, it will be 12a = 6b + 2c.
3. Since we want 3b + c, we can divide the whole equation by 2.
