来自明冬萍的问题
解方程2.7x+3=97.50.95÷0.4x=1.96.8+x=24.56x-4x7.5=244.8x-8=25.612x-6x5=2109x-4x=74.6180(x÷4)=74
解方程2.7x+3=97.50.95÷0.4x=1.96.8+x=24.56x-4x7.5=244.8x-8=25.612x-6x5=2109x-4x=74.6
180(x÷4)=74


解方程2.7x+3=97.50.95÷0.4x=1.96.8+x=24.56x-4x7.5=244.8x-8=25.612x-6x5=2109x-4x=74.6180(x÷4)=74
解方程2.7x+3=97.50.95÷0.4x=1.96.8+x=24.56x-4x7.5=244.8x-8=25.612x-6x5=2109x-4x=74.6
180(x÷4)=74
2.7x+3=97.52.7x=97.5-3x=94.5÷2.7x=350.95÷0.4x=1.90.4x=0.95÷1.9x=0.5÷0.4x=1.256.8+x=24.5x=24.5-6.8x=17.76x-4x7.5=24x=54÷6x=94.8x-8=25.64.8x=25.6+8x=33.6÷4.8x=712x-6x5=21012x=210+30x=240÷12x=...