解方程:1.30x=152.50%x-30=523.16+4x=404.x+0.5x=65.3x+1/2=5/36.x-4/9x=10/217.1/2x-1/3x=1/108.x-35%x=0.529.2/15x+1/6x=2/510.x+3/4=35