x+(21.8-30)=1.2
x-8.2=1.2
x=9,4
x+(21,8 - 30)=1,2
x+(-8,2)=1,2
x-8,2=1,2
x=1,2+8,2
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Verified answer
x+(21.8-30)=1.2
x-8.2=1.2
x=9,4
Verified answer
x+(21,8 - 30)=1,2
x+(-8,2)=1,2
x-8,2=1,2
x=1,2+8,2
x=9,4