25.8-2(0.2x+3.5)=1.8是多少?

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 25.8-2(0.2x+3.5)=1.8是多少? 6乘以4-0.5x=12.8 （24.5-x）乘以2-13=20 5x-x+1.8=3.6 （x+2.1）除以3=10.5 3.5乘以x=105 13.06-x=8.07 0.2（x-3.5）=1 12x-3.5x+85 1.2x-x=35 3-3x=0.3 3.5乘以6-0.2x=11.4 3.5乘以（6-0.2x）=17.5 x^2+3x-1.8=x x=? 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-1)+(x+2)+0.2x+2x=46 5x-4x=2*1.8,5x-2+3x=3.6,x+4x=20.3,8x+10-3x=30,10.5-0.5x+0.5=1,x+2x+5x=10,解方程,5x-4x=2*1.8,5x-2+3x=3.6,x+4x=20.3,8x+10-3x=30,10.5-0.5x+0.5=1,x+2x+5x=10,0.8x-0.2+1.2x=1.8,2.4x+0.6+1.6=8 2x+3.6*2=12.4 3(x+3.6)=18.6 x+3.5x=13.5 27x-4x=34.5 3x+2.8=4.3 12x-24=6 3x+9=10.5 5x+1.2=4.7 3*1.5+2x=11.55.4+1.8x=6.3 4.4x-2.7x=5.78 2.5x-3.6=6.4 2x+3.6*2=12.4 3(x+3.6)=18.6 x+3.5x=13.5 解方程：（1）20%x+1=1.8（2）3.5/1.4=x/0.2（3）2/3x-1/6x=2/3 解方程：2-3.5x=-4.5x 2x=3x+16 2.5x-1.9=1.8x+1.6 3.5x+x=32.4 0.6x（x+0.6)=0.6 25%x-20%=1.8 20%x÷15%=2 解下列方程.3-4x=2-x 0.2x+1=-1.8x 3分之1x=9-3分之2x 一元一次方程————移项变号.3-4x=2-x 0.2x+1=-1.8x 3/1x=9-3/2x 解方程,（1）3-4x=2-x （2）0.2x+1=-1.8x（1）3-4x=2-x（2）0.2x+1=-1.8x 6x—7.05=7.95 5.4x+x=19.2 8（2+x）=406x—7.05=7.95 5.4x+x=19.2 8（2+x）=40 1.8÷0.3—0.2=2, 2（0.3x+4）-5（0.2x-1.8）=1 求x的解 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 化简(2x-5)(3x+2)-6(x+1)(x-2),其中x=0.2