内容介绍：解方程3X+5X=48四年级解方程练习题14X-8X=1220X-50=5028+6X=8824-3X=310X+5x=60X+3=18X-6=124y+2=6x+32=7616+8x=402x-8=88x-3x=105x-65=422x+3=1012x-9x=965+2X=44 32-22X=10 99X=100-X56-2X=20 3x+6=184x-39=29 x+5=76x+18=4856