Asked by aera

Lea is two years older than Mia.The sum of their ages is 20.Find their present ages.

Answers

So if the SUM of their age is 20, what does SUM mean?
@aera heres a hint. Your going to undo the problem.
Answered by :)
Lia was 11 and Mia was 9. 9 plus eleven equals twenty, and 11 is two numbers larger than nine. :)
Answered by PsyDAG
SUM means to add.

L = M + 2

L + M = 20

Substitute M+2 for L in the second equation and solve for M. Insert that value into the first equation to solve for L. Check by putting both values into the second equation.
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