Verified Answer :

Let, number of sold Pizza = x
Number of sold sub-sandwiches = x+13

So, equation would be: 6x + 4(x+13) = 262
6x + 4x+52 = 262
10x = 210
x = 210/10

x = 21  (Number of Pizza)
z+13 = 34 (Number of Sub-sandwiches)

Hope this helps!

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