7.8-10.8=4.2x
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7.8-10.8=4.2x7.8-10.8=4.2x7.8-10.8=4.2x7.8-10.8=4.2x-3=4.2xx=-3÷4.2x=-5/7x=3/4.2=5/7
7.8-10.8=4.2x
7.8-10.8=4.2x
7.8-10.8=4.2x
7.8-10.8=4.2x
-3=4.2x
x=-3÷4.2
x=-5/7
x=3/4.2=5/7
7.8-10.8=4.2x
7.8x-4.8x=5.4 3x+4.2x+7.8=15解方程
解方程,7.8x=10.8+4.2x.正确答案为3,要验算,公式正确!
x-0.8x=4.2
7.8X-X=14.
X-35%X=7.8 X+160%X=39
7.8-10.8=4.2x 并且要验算?
解方程 只要结果,6x-4x=20 1.6+4x=7.6 0.18-6x=0.51 21x-10.8x=8.1 1.6x+2.4x=10.4 6x=96 8x-12.2=3 8.5-5x=3.7 8x-50=0.96 7.8x+0.2x=64.8 1x=10 1.2x-0.5x=2 1.3x=6.3 1.2x+0.3x=3.3 x+3.75=8.42 7x/5=6.3
7x+2x=0.81 4(x-6)=36 2x+0.2xX2=36 3.4x-6=4.2 7.8x+5=44 7.5x+2.5=20 25.8-2x=12-7 4x+2.8=5.040.9x-4X1.3=1.1 1.3x7=25.1-8x 4.8+0.5x=6.3 (25+2x)X4=340大写的X是乘 小写的是x 求x是几
(X+X)+(X-X)+(X*X)+(X/X)=100
0.2x=0.8x-7.8(x=-13,x=13,x=12)
2x-7.8=4.2 解方程
(10.8-x)×25%=7.2-x 中x怎么算
1.6X=10.8 X=?
4.2x-x=25.6 x÷7=2.1
12.5x+x=10.8怎么解
0.6x+(16-x)×0.8=10.8
6x+(16-X)0.8=10.8