simplify the expression

6(3x-5)+2(3x-5)-8(2x-5)

6(3x-5)+2(3x-5)-8(2x-5)

Start by distributing the numbers outside the parentheses:
18x - 30 + 6x - 10 - 16x + 40

Combine like terms:
(18x + 6x - 16x) + (-30 - 10 + 40)

Combine like terms again:
(8x) + (0)

The simplified expression is:
8x