Answer:
27x+49
Explanation:
1. Start by distributing the 5 to 6x+9. This means to multiply 6x and +9 by 5.
6x times 5 = 30x
5 x 9 = 45.
5(6x+9) simplifies to 30x+45
2. Rewrite the expression as 30x+45-3x+4
3. Combine like terms.
30x - 3x = 27x
45 + 4 = 49
27x+49