作业帮(-0.7)+(-0.4)+1+(-0.3)+0.5 (-0.06)-(+9.4)+1 0-(-64)-(+43)+(-49)-(+15) (-2)+3+6+(-3)+2+(-4)快
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(-0.7)+(-0.4)+1+(-0.3)+0.5 (-0.06)-(+9.4)+1 0-(-64)-(+43)+(-49)-(+15) (-2)+3+6+(-3)+2+(-4)快
(-0.7)+(-0.4)+1+(-0.3)+0.5 (-0.06)-(+9.4)+1 0-(-64)-(+43)+(-49)-(+15) (-2)+3+6+(-3)+2+(-4)
快
(-0.7)+(-0.4)+1+(-0.3)+0.5 (-0.06)-(+9.4)+1 0-(-64)-(+43)+(-49)-(+15) (-2)+3+6+(-3)+2+(-4)快
-0.7-0.4+1-0.3+0.5-0.06-9.4+10+64-49-15-2+3+6-3+2-4
=-1.1+1-0.3+0.5-0.06-9.4+10+64-49-15-2+3+6-3+2-4
=-0.1-0.3+0.5-0.06-9.4+10+64-49-15-2+3+6-3+2-4
=-0.4+0.5-0.06-9.4+10+64-49-15-2+3+6-3+2-4
=4.6-0.06-9.4+10+64-49-15-2+3+6-3+2-4
=4.54-9.4+10+64-49-15-2+3+6-3+2-4
=-5.14+10+64-49-15-2+3+6-3+2-4
=4.86+64-49-15-2+3+6-3+2-4
=68.86-49-15-2+3+6-3+2-4
=19.86-15-2+3+6-3+2-4
=14.86-2+3+6-3+2-4
=12.86+3+6-3+2-4
=15.86+6-3+2-4
=21.86-3+2-4
=18.86+2-4
=20.86-4
=16.86
你没计算机?
解方程:0.4(x-0.2)+1.5=0.7x-0.
0.3x+0.4=0.7x-1
0.73=0.7×0.7×0.
x+1/0.4-0.2x-1/0.7=1等于
（-0.7）+（-0.4）+1+（-0.3）+0.5
(x-1)/0.3-(x+7)/0.5=1.7 x/0.7-(0.17-0.7x)/0.
0.|十0.2十0.3十0.4十0.5十0.6十0.7十0.8十0.9怎样巧算
(0.7)的平方 得数是多少?（0.7）²是0.7×0.7×0.7 还是0.7×0.
0.7:3.5比值是0.
0.7(x+0.5)＝0.
解方程0.7X+1/0.4-0.2X-1/.07=1
0.4分之x+1-0.7分之0.5x+1=1
0.4分之x+1-0.7分之0.5x+1=1
1-0.7+3x/0.8=0.3x-1/0.4-x
1-0.8分之0.7+3x=0.4分之0.3x-1-x
1-(0.7+3x）除以0.8=(0.3x-1)除以0.4-x帮帮
解方程0.3分之0.1x-1+0.4分之0.3-0.7x=1
5(x-1)=x+1 0.4(x-0.2)+1.5=0.7x-0.38