6x-1=42=10x+5=78
We move all terms to the left:
6x-1-(42)=0
We add all the numbers together, and all the variables
6x-43=0
We move all terms containing x to the left, all other terms to the right
6x=43
x=43/6
x=7+1/6
Step-by-step explanation:
Hope it is helpful