SOLUTION: In 5 years Sandy will be 4 years younger than twice Tim's age. Set up the equation. I see it as S+5=(2t+5) -4. The book shows the equation as S+5=2(t+5)-4. ??????

Question 447478: In 5 years Sandy will be 4 years younger than twice Tim's age. Set up the equation.
I see it as S+5=(2t+5) -4. The book shows the equation as S+5=2(t+5)-4. ??????
Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
In 5 years Sandy will be 4 years younger than twice Tim's age. Set up the equation.
.
Let S = Sandy's age
and T = Tim's Age
.
Break up:
"In 5 years Sandy will be 4 years younger than twice Tim's age."
to get your equation
.
In 5 years, they BOTH will have aged 5 years:
"In 5 years" Sandy's age is S+5
"In 5 years" Tim's age is T+5
.
Therefore:
"In 5 years Sandy will be 4 years younger than twice Tim's age."
S+5 = 2(T+5)-4
Your equation says twice Tim's current age plus 5.

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