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When Pat is twice as old as she is now she will be three times as old as she was three years ago How old is Pat now? |
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This is an algebra problem which can be solved using the equation
2x = 3(x-3), x being the variable representing Pat's age. To solve:
1. 2x = 3(x-3) [original problem]
2. 2x = 3x-9 [distribute the three, multiply it by both numbers in parentheses]
3. 0 = x-9 [subtract the 2x from both sides]
4. 9=x [add the -9 to both sides]
Pat is nine years old.
CHECK:
1. 2 x 9 = 3 x (9-3) [original problem]
2. 18 = 3 x 6
3. 18 = 18
First answer by ID1143805503. Last edit by ID1143805503. Question popularity: 4 [recommend question]
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