Respuesta :

joycelishunuan

Answer:

a and b are 3 and 4

Step-by-step explanation:

To find the answer I go through all the two numbers that and multiply and gat 12:

1x12; 2x6; 3x4

And that add them:

1+12=13 x

2+6=8 x

3+4=7 this is the answer

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