4 step equation pre-algebra help?

okay, so i need help doing these problems

3(6s+12)-(10s-6)=0

10(-3-2t)+10-2(6t-13)=0

-5y+4(-y+9)-7(7+3y)=-7

-(15p-1)+24+2(5+5p)=0

i got answers that were wrong but they are

s= 3 3/4

t= -5 3/4

y= -7 2/3

p= 6 3/5

please help!!! i need the answers like right now cause the assignment is due tomorrow!!! please help!!!
 
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