Answer:
3 (4+n)=0
3×4+3×n=0
12+3n=0.... equation 1
3 (n+p)
3×n+3×p=0
3n+3p=0........... equation 2
eq 1 multiply 3 eq 2 multiply 3
36+9n=0
9n+9p=0
_ _ =0
_9n is +9n Crush
36+9p=0
p=36÷9
p=4
p is 4 ans
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