SOLUTION: Nancy is 2 less than twice the age of Sara. The sum of their ages is 28. A) Write a system of equations that can be used to solve this problem. B) Solve the system of equations t

Algebra ->  Customizable Word Problem Solvers  -> Age -> SOLUTION: Nancy is 2 less than twice the age of Sara. The sum of their ages is 28. A) Write a system of equations that can be used to solve this problem. B) Solve the system of equations t      Log On

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Question 719264: Nancy is 2 less than twice the age of Sara. The sum of their ages is 28.
A) Write a system of equations that can be used to solve this problem.
B) Solve the system of equations to tell you how old Nancy and Sara each are.
Answer by checkley79(3341) About Me  (Show Source):
You can put this solution on YOUR website!
N=2S-2
N-2S=-2
N+S=28 SUBTRACT.
-----------------------
-3S=-30
S=-30/-3
S=10 ANS. FOR SARA'S AGE.
N=2*10-2
N=20-2=18 AGE OF NANCY.
PROOF:
10+18=28
28=28