5-2x=4
5-2x-4=0
1-2x=0
-2x=-1
2x=1
x=1/2 = 0,5
Ответ: x=0,5
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5-2x=4
5-2x-4=0
1-2x=0
-2x=-1
2x=1
x=1/2 = 0,5
Ответ: x=0,5