X-3.65=x÷3.5

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X-3.65=x÷3.5X-3.65=x÷3.5X-3.65=x÷3.5两边同时乘以2.5,3.5x-3.65*3.5=x2.5x=3.65*3.5x=0.73*7=5.11

X-3.65=x÷3.5
X-3.65=x÷3.5

X-3.65=x÷3.5
两边同时乘以2.5,3.5x-3.65*3.5=x
2.5x=3.65*3.5
x=0.73*7=5.11