15减x等于4点8 方程
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解由题意得43.2-36.5/X=0.543.2-0.5=36.5/X42.7=36.5/XX=0.85
0.77x=0.82×7-4.20.77x=1.54x=1.54÷0.77x=2
1.3x-3.2=13.71.3x=13.7+3.21.3x=16.9x=16.9/1.3x=13
9.2X-X=49.2(9.2-1)X=49.28.2X=49.2X=49.2÷8.2X=6
15*8x=21*4x=21*4/(15*8)=7/10
7.6x-4x=3.63.6x=3.6x=1
20×0.4-1.2x=5.68-1.2x=5.61.2x=2.4x=2
9.5X-5X=0.94.5X=0.9X=0.9÷4.5X=0.2
8-x=9“减数=被减数-差”等于x=8-9x=-1
8减4x等于68-6=4x4x=2x=1/2
1.8-2x=0.61.8-0.6=2x1.2=2xx=1.2÷2x=0.6
0.7x-0.6x=0.010.1x=0.01x=0.1
X减0点76X等于0点96X-0.76X=0.960.24X=0.96X=0.96÷0.24X=4
x-24.7=39.6方程两边同时加上24.7x-24.7+24.7=39.6+24.7x=64.3再问:x+4.5=23.52用解方程再答:两边同时减去4.5x+4.5-4.5=23.42-4.5x
12-4x=3.64x=12-3.64x=8.4x=2.18:x=4.5:1.54.5x=12x=8/3x+3x=4.084x=4.08x=1.02102乘22减1428除14=2244-102=21
2.8x-0.6=52.8x=5.6x=5.6/2.8x=2
2.4x+1.8x=42(2.4+1.8)x=424.2x=42x=10