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x-1,2x=-3
-0,2x=-3 /÷(-0,2)
x=15
b-0,2b=24
0,8b=24 /÷0,8
x=30
p-4=0,9p
p-0,9p=4
0,1p=4 /÷0,1
p=40
1,2y=22 /÷1,2
y=