Two workers produced 86 parts during their working shift. the first worker produced 15% more parts than the second one. how many parts did each worker produce?

For the answer to the question above, 
Let Worker 1 produces x parts
Let Worker 2 produces x+0.15x parts (0.15x is 15% of x)
Let us make the equation
x+x+0.15x=86

You can solve that for x, which will be the number of parts worker 1 produces
x=40

now we can solve for what worker 2 produces
40+0.15(40)=46 (**since there are two workers, you could also just subtract the parts produced by worker 1 from the total number)

Therefore,
worker 1 = 40 parts
worker 2 = 46 parts

That. you would have multiple