x-0.75x=2..急
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x-0.75x=2..急
x-0.75x=2..急
x-0.75x=2..急
x-0.75x=2.5
0.25x=2.5
x=2.5÷0.25
x=10
x=10
x-0.75x=2.5
0.25x=2.5
x=10
10
x-0.75x=2..急
x-0.75x=2..急
x-0.75x=2..急
x-0.75x=2.5
0.25x=2.5
x=2.5÷0.25
x=10
x=10
x-0.75x=2.5
0.25x=2.5
x=10
10