Answer:
a=8 and b=6
Step-by-step explanation:
First you need to make common denominator.
Multiply 3 over 5x by (x+2) on both top and bottom to get 3x+6 over 5x(x+2).
Then, multiply 1 over x+2 by 5x on top and bottom to get 5x over 5x(x+2)
And then add the numerators.
3x+6+5x
you get 8x+6
ax+b correspond to 8x+6
so a=8 and b=6
