Respuesta :

giu14

Answer:

y=4

x=3

Step-by-step explanation:

4y-3=

4(4)-3=16-3= 13

3y+1=

3(4)+1=12+1=13

4x+6=

4(3)+6=12+6=18

7x-3=

7(3)-3=21-3=18

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