30+6(8-x)=48

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30+6(8-x)=4830+6(8-x)=4830+6(8-x)=4830+6(8-x)=4830+48-6x=486x=30+48-486x=30x=5

30+6(8-x)=48
30+6(8-x)=48

30+6(8-x)=48
30+6(8-x)=48
30+48-6x=48
6x=30+48-48
6x=30
x=5