1. 9*8-4c*8=72-32c
2. 7*3x-7*4=21x-28
3. 5*2x-5*2y=10x-10y
4. 8y*16-4*16=128y-64
5. 14x*4+5y*4+3*4=56x+20y+12
1. 9*8-4c*8=72-32c
2. 7*3x-7*4=21x-28
3. 5*2x-5*2y=10x-10y
4. 8y*16-4*16=128y-64
5. 14x*4+5y*4+3*4=56x+20y+12