Answer:
Step-by-step explanation:
3/5x-3/4=9/10
3/5x=9/10+3/4 find common denominator
3/5x=33/20 divide by 3/5
x=11/4
6/7+2/5x=-4/5 move 6/7 to other side
2/5x= -4/5-6/7 find common denominator
2/5x= - 58/35 divide by 2/5
x= -29/7
5/8=5/6x-2/3 move -2/3 to other side
5/8+2/3=5/6x find common denominator
31/24=5/6x divide by 5/6
x=31/20
17/20-4/5x= -3/10 move 17/20 to other side
-4/5x=-3/10-17/20 find common denominator
-4/5x=-23/20 divide by -4/5
x= 23/16