Question

If AB =4x+1 and AC=5x+20, find the length of BC

Answer 1

Given:

AB = 4x + 1

AC = 5x + 20

And we have:

`AC=AB+BC`

Substitute the values:

`5x+20=4x+1+BC`

And solve for BC:

`5x+20-4x-1=4x+1+BC-4x-1`

Add like terms:

`x+19=BC`

Answer: BC = x + 19