6.9x-4.1=9.1 7.2-0.2x=6.2
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6.9x-4.1=9.1 7.2-0.2x=6.2
6.9x-4.1=9.1 7.2-0.2x=6.2
解方程.6.9x-4.1=9.1
解方程:6.9x=23.12 6(x+2)=72 6.8x+2.3×=30.02 (9-4.5)x=4.5 6.8x+2.3×3=30.02 x÷(6.3-2.3)=1.16.8x+6.9x=27.4 1.8(x+0.2)=7.2 3x-4×6=48 6x+7x=26 x+3.5×3=18
21分之10x÷3分之2=7分之3x-3分之1x-2分之1x=190x-53x=7408.5x-6.9x=43.3x-200=0.2x+1101.02+0.4x+2.6x=3.428.9x-67=4.5x+656x-58=3x+1410x-20=5x+806x+5=10x-3420-1.4x=9.8x-288.2x+5.4x=272
解方程:(x-2.4)÷2=3.6 6.9x=23.12 6(x+2)=72 6.8x+2.3×=30.02 (9-4.5)x=4.5 6.8x+2.3×3=30.02x÷(6.3-2.3)=1.1 6.8x+6.9x=27.4 1.8(x+0.2)=7.2 3x-4×6=48 6x+7x=26 x+3.5×3=18
x-30-0.2x=0.5x
x-0.2x=80 求x
7x-x=7.2
x-20%x=7.2
7x-x=7.2
1.8x-7.2=x
x-0.48x=7.2
x-0.8x=7.2
(X-8)/X=0.2(X-8)/X=0.2
X-X×0.2=1.18
x-0.2.x=180
x-0.2x=36