2.8x=19.32-6.4x
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2.8x=19.32-6.4x2.8x=19.32-6.4x2.8x=19.32-6.4x2.8x=19.32-6.4x,2.8x+6.4x=19.32,9.2x=19.32,x=2.1.移项得==>
2.8x=19.32-6.4x
2.8x=19.32-6.4x
2.8x=19.32-6.4x
2.8x=19.32-6.4x,
2.8x+6.4x=19.32,
9.2x=19.32,
x=2.1.
移项得
==>2.8x+6.4x=19.32
==>9.2x=19.32
==>x=2.08
x等于2.1
方法,移项再除
2.8x=19.32-6.4x
2.8x=19.32-6.4x
(X+X)+(X-X)+(X*X)+(X/X)=100
x*x*x*x*x=80000?
X-20%X=(44-X)怎么解X-20%X=(44-X)+2.8
2x+3.6*2=12.4 3(x+3.6)=18.6 x+3.5x=13.5 27x-4x=34.5 3x+2.8=4.3 12x-24=6 3x+9=10.5 5x+1.2=4.7 3*1.5+2x=11.55.4+1.8x=6.3 4.4x-2.7x=5.78 2.5x-3.6=6.4 2x+3.6*2=12.4 3(x+3.6)=18.6 x+3.5x=13.5
解方程(一定要有完整的过程!):1、3x-4+2x=4x-3 2、2.8x=19.32-6.4x 3、0.4(x-0.2)+1.5=0.7x-0.384、6(3x-2)-4(4x-3)=1
2.8x=19.32-6.4x(要解析和过程)
70.7-2.8x=124.7-6.4x 解方程
2.0x=19.32-6.4x
x*x*x=504 x*x*x=504
(x+x)+(x-x)+(x/x)=11.2
x+x+x+y+y=6.4 y+y+y+x+x=7.1 怎么算?
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