SOLUTION: Seventeen years ago, Arnold was 2/3 as old as he is now. How old is Arnold? x-17=2/3x

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Question 528485: Seventeen years ago, Arnold was 2/3 as old as he is now. How old is
Arnold?
x-17=2/3x
Answer by oberobic(2304) About Me  (Show Source):
You can put this solution on YOUR website!
You're right.
.
x = current age
x - 17 = how old he was 17 years ago
x-17 = 2/3x
.
multiply both sides by 3 to eliminate the fraction
.
3(x-17) = 2x
.
3x -51 = 2x
.
subtract 2x from both sides
.
x -51 = 0
.
add 51 to both sides
.
x = 51
.
check the answer
.
x-17 = 51-17 = 34
is 34 = 2/3*51?
yes
.
Answer: Arnold is 51 years old.
.
Done.