Question 627985
Let T = Tamu's age


"when 75 is subtracted from four times Tamu's age, the result is Tamu's age" 


translates to


4T - 75 = T


Let's solve for T


4T - 75 = T


4T - 75 - 4T = T - 4T ... Subtract 4T from both sides.


-75 = -3T ... Combine like terms.


-3T = -75 ... Flip the equation


-3T/(-3) = -75/(-3) ... Divide both sides by -3.


T = <font color="red">25</font> ... Divide


So Tamu is <font color="red">25 years old</font>


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