Answer :

I hope this helps you



4,8 (x+4)=2,16



48 (x+4)=21,6


x+4=21,6/48


x+4= 0,45


x=0,45-4


x= -3,55
x=0.5 i think because 2.16/4.8=0.45, so 0.5+4=4.5

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