54-10х+28,4+4,5x=-1,5x+10,4
54+28,4-10,4=-1,5x-4,5x+10x
72=4x
x=18
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54-10х+28,4+4,5x=-1,5x+10,4
54+28,4-10,4=-1,5x-4,5x+10x
72=4x
x=18