Step-by-step explanation:
let travis' age be a.
so,
a + b=70a= 2b - 62 twice big boi's age minus 62 (because travis is younger)
substitute a= 2b-62 in a + b=70. so, a in a+b becomes 2b-62
a + b=70⇒ 2b-62+ b=70 (this is your new equation)
2b-62+ b can be rewritten as 2b+b-62 which is also 3b-62
so, this equation (2b-62+ b=70) becomes 3b-62=70
3b-62=70 ⇒ 3b=70+62 ⇒ 3b=132
b=132/3
b=44
but remember
a + b=70
now you know b, you can find a
a= 70-b
a=70-44
a=26
big boi's 44 years old, travis is 26
you can also check by plugging the values in the second equation
a= 2b - 62
2(44) - 62 is 26
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