Question 897328
Your age today, y
Grandma's age today, g


____________________16 years ago__________Today_______8 years more
You__________________y-16_________________y_________y+8
Grandmother__________g-16=8(y-16)____________g_________g+8=3(y+8)


First, solve the system {{{highlight_green(system(g-16=8(y-16),g+8=3(y+8)))}}}.


Use that solution for g and y  to evaluate y-8 and g-8.