Find angle abc i need this question is for geometry

Ok, so the set up would be 3x+8 = 5x-40. If you solve for x you can then enter it into the equation and get your answer.

So subtract 3x from 3x and 5x. That leaves you with 8 = 2x-40

Next, you add 40 to both sides leaving you with 48 = 2x

Now divide 2 from x and 48 which give x = 24

Enter the value of x into the equation 3x+8

3(24)+8

80

And because we know it is an acute angle, angle ABC = 80 degrees

the correct answer is the second option