Question 1007186
Translate the description and find their present age each.  After that, answer the question.


x, Pedro now
y, Petra now


{{{system(-2x+(y-5)=4,9(x-3)-4y=4)}}}-----this system must make sense first... then solve for x and y.


A possible simplification before getting to the results,
{{{system(y-5-2x=4,9x-27-4y=4)}}}


{{{system(y-2x=9,9x-4y=31)}}}
Choose the method you want, and continue.


Substitution method?
{{{9x-4(9+2x)=31}}}
{{{9x-36-8x=31}}}
{{{x=31+36}}}
{{{highlight_green(x=67)}}}-----Pedro's age NOW.


Not finished, but you can finish this.