150%X+5.5=18

150%X+5.5=18 (x+30)*(x-18)=x*x 下面几道方程怎么算?0.25+25%x=1.5 x-20%x=14 18-150%x=5.5 6下面几道方程怎么算?0.25+25%x=1.5x-20%x=1418-150%x=5.560%+4x=24.614%x-9.1=0.735%x+x=13.5 4.2-0.6x=3.6x 5x+2x=33.6 7x-4x=0.75 2x+7x+2.1=12 56x-32x-119=361 x+5=2x 3x+9=6x 4x-28=2x 2x+18=7x 5x=25*4-15x 7x-x+2*3=29.4 (28.8+5.5x+3.2）除2=71 6x+150%x=9 18-20%x=8 x-25%=0.8 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 90-x=2x(18+x) x/(x^2+6x+18)=? x平方+x=18,求x x+5.5x=13 9x+x=5.5 x(x-35)=150 x^2=(x+30)X(x-18)怎么解 10x+(6-x)+18=10(6-x)+x (30-x):(18+x)=(20+x):(32-x) x+(x+3)+2x+(2x-18)=255 x-0.7x=18 x-60%x=18