Question

solve: 5a-3/2-3a-9/8=6

Answer 1

is this:
\[\frac{ 5a-3 }{ 2-3a }-9/8\]
or is it:
\[\frac{ 5a-3 }{ 2 }-\frac{ 3a-9 }{ 8 }\]

Answer 2

the question is quite confusing, i suggest you use parentheses :D

Answer 3

Could you show us what you've done so far?

Answer 4

5/a-3/2-3a-9=6
2a=3/2+9/8+6
2a=12/8+9/8+6
2a=21/8+48/8
2a=69/8
16a=69
a=4.3125

Answer 5

5a - 3/2 - 3a - 9/8 = 6 (multiply by 8 to get rid of fractions)
(8)5a - (8)3/2 - (8)3a - (8)9/8 = (8)6
40a - 12 - 24a - 9 = 48
16a - 21 = 48
16a = 48 + 21
16a = 69
a = 69/16
a = 4.3