8x减3x等于105怎么解
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3/8x=24x=24÷3/8x=24×8/3x=64
16/(22-X)=822-X=2X=20检验:X=20时,左边=16/(22-20)=16/2=8=右边所以X=20是原方程的解.
3x-2y=8(1)2x+3y=1(2)(1)×3+(2)×29x+4x=24+213x=26所以x=2y=(3x-8)/2=-1
3×8+4×8=(3+)再答:3×8+4×8=(3+4)×8=7×8=56
7x减2x等于635x=63x=63/5
再问:嗯再问:没过程吗
-2X=28x=-14
7.5x-5.5x=0.752x=0.75x=0.375
7.8x-5x=47.52.8x=47.5x=47.5÷2.8
4分之1÷x=3两边同时乘以x得3x=4分之1x=4分之1÷3x=4分之1×3分之1x=12分之1
x=1/2再问:恩恩再答:好的,等下哦再问:好的再答:题式可化简为x/1-4/4=3/8再答:得3x/4=3/8再答:解得3x=3/2x=1/2再答:^o^不谢
x-5/8x=3/83/8x=3/8x=3/8÷3/8x=1
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
3x-1x=42x=4x=2
6x-x/2=3,(6-1/2)x=3x=6/11
x/(x-2)=(x-4)/(x-5)方程两边同乘(x-2)(x-5),得:x(x-5)=(x-4)(x-2)x^2-5x=x^2-6x+8x=8x/(x-3)=(x+1)/(x-1)x^2-x=x^
X的平方减3X减1等于(X的平方减3X)分之12x²-3x-1=12/(x²-3x)设y=x²-3xy-1=12/yy²-y-12=0(y-4)(y+3)=0y
3x-10=803x=90x=3025%+x=101.25x=10x=8x+160%x=652.6x=65x=25
12X-3=8X+1712X-8X=17+34X=20X=5