(5x-36)/(4x+36)=0.5 十万火急!

解方程 式子 6-2x+3x=3x-4x+3x+18 6-x+3x=2x-5x+1 2x-1=5x-36-2x+3x=3x-4x+3x+18 6-x+3x=2x-5x+12x-1=5x-3 8x-5.5x=7.57.2x÷3.6=2 3x＋6x-8x=0.7 12x-2x-5x=4.512x-x=0 5x＋x=1.8 3.2x＋1.8x=64.8x-0.8x=6 6.3-0.3x=9.6 8.6x-8.5x=0.720x-2x=36 9x＋6x=4.5 18x-12x=5.42x-1.6x=3.6 18x＋3x=7×6 1.2x-0.5x=0.71.3x＋2.7x=1 4x-3.2x=6.4 0.8x＋3.2x＋3x=562.8x-2x=7.2 4(5x+3)(x+4)=36x平方+8649-1116x求x X^2-2X-4=0 X（X-7）=5X-36 X平方+5X=36,X等于4, 5x十4x=36 (5x-36)/(4x+36)=0.5 十万火急! 9-3x-4x=4 27+5x-7x=3 7x-9x+26=10 10+x=4+2x 26.6-3x=29.9-6x 14.6+3x=18.8+x 19.5-2x=27-5x 21+4x-x=369-3x-4x=427+5x-7x=37x-9x+26=10 10+x=4+2x 26.6-3x=29.9-6x 14.6+3x=18.8+x19.5-2x=27-5x 21+4x-x=36 9-3x-4x=4 27+5x-7x=3 7x-9x+26=10 10+x=4+2x 26.6-3x=29.9-6x 14.6+3x=18.8+x 19.5-2x=27-5x 21+4x-x=369-3x-4x=427+5x-7x=37x-9x+26=10 10+x=4+2x 26.6-3x=29.9-6x 14.6+3x=18.8+x19.5-2x=27-5x 21+4x-x=36 60％x+25=40 x+30％x=52 19-120％x=7 4分之3x-5％x=17.5 x-10％x=18 （1-25％）x=36 2x+30％x=9.2 [(x+6)/(x-6)][(x-4)/(x+4)]^2+[(x-6)/(x+6)][(x+9)/(x-9)]^2=2(x^2+36)/(x^2-36) 4(x+5)=35-x 154-2x=3(36+x) 4(x+5)=35-x 1584-2x=3(36+x) 3(x+y)+2(x-y)=36 4(x+y)-5(x-y)=2 x一5/8x=36 3/4x+x二42 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 （1）5x-4x=1 （2）4x-7x=2 （3）4.2x-3.2x=36 （4）4/3x-x=（1）5x-4x=1（2）4x-7x=2（3）4.2x-3.2x=36 （4）4/3x-x=3/1 用行列式 矩阵解题3X₁+4x₂-4x₃+2x₄=-36x₁+5x₂-2x₃+3x₄=-19x₁+3x₂+8x₃+5x₄=9-3x₁-7x₂-10X₃+x₄=2