SOLUTION: If twice the present age of Pedro is decreased from Petra's age 5 years ago, the result is 4. Nine times Pedro's age 3 years ago exceeds 4 times Petra's present age by 4. What were

Question 1007186: If twice the present age of Pedro is decreased from Petra's age 5 years ago, the result is 4. Nine times Pedro's age 3 years ago exceeds 4 times Petra's present age by 4. What were their ages last year?
Answer by josgarithmetic(39618) (Show Source): You can put this solution on YOUR website!
Translate the description and find their present age each. After that, answer the question.

x, Pedro now
y, Petra now

-----this system must make sense first... then solve for x and y.

A possible simplification before getting to the results,

Choose the method you want, and continue.

Substitution method?

-----Pedro's age NOW.

Not finished, but you can finish this.
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