# Math Help - Simultaneous Equations Help

1. ## Simultaneous Equations Help

Could someone please show me how to do this sum using simultaneous Equations, step by step so I could use it as an example to work out similar sums?

In four years time a mother will be three times as old as her son. Four years ago she was five times as old as her son. Find their present ages.

2. Originally Posted by vincisonfire
Thanks, I know how to work the simultaneous equations out but I need to know how to construct the simultaneous equation for these kind of sums.

3. x = age of mother now
y = age of son now
x+4 = age of mother in four years
y+4 = age of son in four years
etc.
First statement : $x+4=3(y+4)$
Second statement : $y-4=5(y-4)$