Answer:
400
Step-by-step explanation:
-1/20
2(3/8) - 4/5
6/8 - 4/5
30/40 - 32/40
-2/40
777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777
x = 30
4x + 2x = 180
6x = 180