You can
put this solution on YOUR website! Sam is twice as old as Mary.
Translation: S = 2M
Mary is one year older then Jim.
Translation: M = J+1
Jim's age is x.
Translation: J = x
Write an expression to find Sam's age in terms of x.
Translation:
1. Use J = x to substitute x for J in M = J+1.
2. Then take what you get M to equal,
put parentheses around it,
and substitute it for M in S = 2M.
3. Then distribute.
You finish.
Edwin