Answer:
Step-by-step explanation:
1. 5x+8-7x=4x+1 2.
5x-7x+8=4x+1
2x+8=4x+1
-2x+8=4x+1
-2x+8-8=4x+1-8
-2x-8=4x-7
6x=-7
x=7/6