after 12 years seal will be 3 times as old as he was 4 years ago find its age
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let age of seal be x
a/q
x+12=3(x-4)
x+12=3x-12
x=-24/-12
x=12
a/q
x+12=3(x-4)
x+12=3x-12
x=-24/-12
x=12
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