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Sagot :
x - his age
[tex]x-8=3x-16\\ x-3x=-16+8\\ -2x=-8\\ x=4[/tex]
He's 4 years old.
[tex]x-8=3x-16\\ x-3x=-16+8\\ -2x=-8\\ x=4[/tex]
He's 4 years old.
x - Ollie's age
8 is subtracted from Ollie's age = x-8
the result is the same as
subtracting 16 from 3 times his age = 3x-16
[tex]x-8=3x-16 \\ x-3x=-16+8 \\ -2x=-8 \\ x=4[/tex]
Ollie is 4 years old.
8 is subtracted from Ollie's age = x-8
the result is the same as
subtracting 16 from 3 times his age = 3x-16
[tex]x-8=3x-16 \\ x-3x=-16+8 \\ -2x=-8 \\ x=4[/tex]
Ollie is 4 years old.
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