x÷2+6.25=3x怎么做
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x÷2+6.25=3x怎么做
x÷2+6.25=3x怎么做
x÷2+6.25=3x怎么做
两边同时乘以2得:
x + 12.5 = 6x
6x - x= 12.5
5x = 12.5
x = 12.5÷5
x = 2.5
x/2+25/4=3x
2x+25=12x
-10x=-25
x=2.5
x + 12.5 = 6x
6x - x= 12.5
5x = 12.5
x = 12.5÷5
x = 2.5
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