Question

Bryn’s age is given by the expression 3g - 7 where g is her sister Gabriela’s age. If Bryn is 17 how old is Gabriela?

Answer 1

if Bryn is 17 then 3g - 7 =17 so if we add 7 to 17 the equation is

3g = 24 and divide the equation by 3 g = 8

Gabriela is 8

Answer 2

If Bryn is 17 you make an equation
3g-7=17
Then you would add seven on both sides
3g=24
Then divide 24 by 3 which would give you 8
G=8
Gabriella is 8