x⼀80X2+1⼀80(x+5)X8=3⼀4 X,表示乘号

2025-02-27 15:48:12
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回答1:

x/80X2+1/80(x+5)X8=3/4 两边乘80
2x+8(x+5)=60
2x+8x+40=60
2x+8x=60-40
10x=20
x=2