Petko 5945

Petko and Lenka are two years older than Jana. Jana is eight years old. Petko is two years older than Lenka. How old is Lenka? How old is Petko?

Correct answer:

L =  7
P =  9

Step-by-step explanation:


P+L = 2 · 8
P = 2 + L

L+P = 16
L-P = -2

Row 2 - Row 1 → Row 2
L+P = 16
-2P = -18


P = -18/-2 = 9
L = 16-P = 16-9 = 7

L = 7
P = 9

Our linear equations calculator calculates it.



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