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9 3/10%3.5x2.4=?

9又3/10-3.5×2.4 =9.3-3.5×2×1.2 =9.3-7×1.2 =9.3-8.4 =0.9

x-2.4+3.5=4解方程 解:原方程即: x+1.1=4 x=4-1.1 x=2.9 把x=2.9代入原方程检验, 2.9-2.4+3.5 =0.5+3.5 =4

应该正常 吧

3.5*9.9 =3.5x(10-0.1) =3.5x10-3.5x0.1 =35-0.35 =34.65 希望帮到你 望采纳 谢谢 加油

(1)5(x-3.5)=26.5, 5(x-3.5)÷5=26.5÷5, x-3.5=5.3, x-3.5+3.5=5.3+3.5, x=8.8;(2)4x-2.4×4=25.6, 4x-9.6=25.6, 4x-9.6+9.6=25.6+9.6, 4x=35.2, 4x÷4=35.2÷4, x=8.8;(3)(x-6)÷4=8, (x-6)÷4×4=8×4, x-6=32, x-6+6=32+...

28.5+3.5x=77 3.5x=77-28.5 3.5x=48.5 x=97/7

2x+1.5x=17.5 3.5x=17.5 x=5

6.1×3.5+3.6×3.9=6.1×3.5+(3.5+0.1)×3.9=3.5x(6.1+3.9)+0.1x3.9=35.39

37.5%x-2=2 x=4*100/37.5=10.77 9.5-3.5x=4 5.5=3.5x x=55/35=11/7 x+四分之x=2.5% 5x/4=2.5/100 x=2.5/100*4/5=1/50

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