2(3x + 7) +5(9x - 3)

Answer 1

To simplify the expression 2(3x + 7) + 5(9x - 3), distribute the terms inside the parentheses.

First, distribute the 2 to both terms inside the first set of parentheses:
2(3x + 7) = 2 * 3x + 2 * 7
= 6x + 14

Next, distribute the 5 to both terms inside the second set of parentheses:
5(9x - 3) = 5 * 9x + 5 * -3
= 45x - 15

Now combine the simplified terms:

6x + 14 + 45x - 15

Combine like terms:
(6x + 45x) + (14 - 15)
= 51x - 1

Answer 2

14 -15

Answer 3

The expression 14 - 15 simplifies to -1.