illustrate the ages of a family members using mathematical expression(father =50, mother =49, first child =20, second child =15)

Question

write the illustration in mathematical expression

Answer 1

there are many expressions to satisfy the conditions

x=first child

x-5=second child

2.5x=father

2.5x-1=mother

x+x-5+2.5x+2.5x-1=134

7x-6=134

7x=140

x=20

x-5=15

2.5x=50

2.5x-1=49

or,...

x=father

x-1=mother

x-30=first child

x-35=second child

x+x-1+x-30+x-35=134

4x-66=134

4x=200

x=50

x-1=49

x-30=20

x-35=15