Answer:
x =

Explanation:
Given
7x + 8(x +
) = 3(6x - 9)
Distribute parenthesis on both sides
7x + 8x + 2 = 18x - 27, that is
15x + 2 = 18x - 27 ( subtract 18x from both sides )
- 3x + 2 = - 27 ( subtract 2 from both sides )
- 3x = - 29 ( divide both sides by - 3 )
x =
