Question 1091920
<pre> Let:
T = Toni's age now
D = Toni's Dad's age now
M = Toni's Mom's ag now
</pre>
The age of Toni's dad is six times his age 
<pre>
D = 6T
</pre>
and the age of Toni's mom is two less than the age of his dad. 
<pre>
M = D-2
</pre>
3 years ago, the sum of the ages of Toni's parents is equal to...
<pre>
(D-3)+(M-3) = ...
</pre>
five times Toni's age in 5 years plus his age three years ago. 
<pre>
... =  5(T+5) + (T-3)

(D-3)+(M-3) = 5(T+5) + (T-3)
</pre>
Find the age of Toni's parents.
<pre>
This is the system:

{{{system(D = 6T, M = D-2, (D-3)+(M-3) = 5(T+5) + (T-3))}}}

Simplify it to this:

{{{system(D = 6T, D = M + 2, D + M = 6T + 28)}}}

Subtract the 1st equation from the 3rd equation and solve for
M and you'll get the value for M.  Substitute that value for M
in the 2nd equation to find the value for D.  Substitute that
value for D in the 1st equation and solve for T.

D = ?, M = ?, T = ?

Edwin</pre>