Question 1163625
g = gracie's age
r = rose's age
g = r - 4
g + r = 24
replace g in the first eqaution with r - 4 to get:
r - 4 + r = 24
combine like terms to get:
2r - 4 = 24
add 4 to both sides of the equation to get:
2r = 28
solve for r to get:
r = 28/2 = 14
since g = r - 4, then you get:
r = 14
g = 10
that's  their ages.
rosie is 14.
gracie is 10.