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The sum of Savvis age twice Thomases age is 12 the difference of Sally's age and Thomases age is right and solve a system of equations to find their ages interceptor solution

Respuesta :

s=sally
tomas=t

s+2t=12
s-t=3
add t to both sides
s=3+t
subtitute 3+t for s in first equation
3+t+2t=12
3+3t=12
subtract 3
3t=9
divide by 3
t=3
tomas=3

subsitute
s=t+3
s=3+3
s=6

sally=6
tomas=3

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