Question 1184989
golden wedding happens at 50 years of marriage
F and J will be the variables
{{{F=(8/7)J}}}
{{{(F-50)=(3/2)(J-50)}}}
use substitution to solve.
{{{(F-50)=(3/2)(J-50)}}}
{{{(8/7)J-50=(3/2)(J-50)}}} multiply in
{{{(8J/7)-50=(3J/2)-(150/2)}}}simplify then add 50 to both sides
{{{(8J/7)=(3J/2)-25}}} subtract 3j/2 from both sides
{{{(8J/7)-(3J/2)=-25}}} multiply by a 1 to make the common denom  14
{{{(2/2)(8J/7)-(7/7)(3J/2)=-25}}} multiply across for each one
{{{(16J/14)-(21J/14)=-25}}}subtract then multiply both sides by -1
{{{(5J/14)=25}}}multiply both sides by 14
{{{5J=350}}} divide
{{{highlight(J=70)}}} 50 years ago she was 20
{{{F=(8/7)J}}}
{{{F=(8(70)/7)}}}
{{{highlight(F=80)}}} 50 years ago he was 30

Make sure u note the answer the question wants is: "How old will 
each of them be on their golden anniversary?"

It doesn't ask for what age they were when they got married. the other tutor seemed to have missed that part.