Let’s begin with question 1.
1. Combine like terms
9x + 7 = 34
2. Subtract 7 from both sides
9x = 27
3. Divide by coefficient
x = 3
Now onto question 2!
1. Combine like terms
7b - 9 = 30
2. Add 9 to both sides
7b = 39
3. Divide by coefficient
b = 39/7
