x-0.25x=2.8+0.2解放程1.26-2x=0.74 1.3x+1.5x=0.14 x÷8=0.06

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x-0.25x=2.8+0.2解放程1.26-2x=0.741.3x+1.5x=0.14x÷8=0.06x-0.25x=2.8+0.2解放程1.26-2x=0.741.3x+1.5x=0.14x÷8=

x-0.25x=2.8+0.2解放程1.26-2x=0.74 1.3x+1.5x=0.14 x÷8=0.06
x-0.25x=2.8+0.2解放程
1.26-2x=0.74 1.3x+1.5x=0.14 x÷8=0.06

x-0.25x=2.8+0.2解放程1.26-2x=0.74 1.3x+1.5x=0.14 x÷8=0.06
x-0.25x=2.8+0.2
0.75x=3
x=3÷0.75
x=4

x-0.25x=2.8+0.2
0.75x=3
x=4

x=4