3/8 c -2 = 3/2 c -12
add 12 to both sides
3/8 c +10 = 3/2c
minus 3/2c
3/8 c - 3/2c + 10 = 0
3/8c - 3/2c = -10
make common denominator of 8
3/8c - 12/8c = -10
-9/8c = -10
times by 8 on both sides
-9c=-80
c = -80/-9
negatives cancel out