四年级下册解方程.doc

精选4+x=74+x-2=7x-6=9+34x=1624-x=15+2x3(x+6)=2+5x2(x+4)-3=2+5x20x-50=5024-3x=336x=1836x-2=164y+2=616+8x=408x-3x=1052（x+3）+3=1356x-50x=3032y-29y=3100-20x=20+30x23y23=2353x-90=16805x=100x+6=9x-6=99+3=17-x15=3x2+5x=18+3x2(2x-1)=3x+104+x=7+517-x=916+2x=24+x4x+2=186x-2=3x+1030-4(x-5)=2x-1630+4(x-5)=2x-26100-3(2x-1)=3-4x28+6x=8810x（5+1）=60x6=12x6+3=9x+32=762x-8=8x-65=42+2x12x-9x=95x=15（x-5）5（x+5）=1555x-25x=604x-20=02x+9x=117x8=1432-22x=1099x=100-x56-2x=2056-3x=20-x3x+6=184x-39=292x+5=736x+18=4878-5x=28899x=8076y76=180y+20=100-20y12（y-1）=2465x+35=1003X+5X=4814X-8X=1265+2X=4424-3X=356-2X=203x+6=1820X-50=5099X=100-X75-5x=1516+8x=4028+6X=88X+3=184y+2=62x-8=8x+5=756x-50x=305x+5=1576y-75=153x-90=167x-8=679y+y=8080y-90=7020x=405x-50=4020X-50=5099X=100-X4y+2=362x-8=2812x-3x=98+15x=28100-10x=2032-22X=10X-6=12x+32=768x-3x=1052x+3=105x=1589x-9=8023y-23=232x+9x=1165x+35=10042x+28x=14078y+2y=16065y-30=1003X+5X=4828+6X=88X+3=18x+32=668x-3x=2056x+8=3832y-6=26x-65=4212x-9x=978-5x=28100-20x=204x-20=012y-12=2419y+y=403x-1=888-x=8051y-y=10014X-8X=1232-22X=1056-2X=203x+6=27x+5=4726x-20x=305x-15=1576y-75=116+8x=402x+3=635x=1059x-18=1813y-13=136x+18=4832y-29=355x-25x=6080y+20=10080+5x=10025-5x=1590y-90=909-4x=15y+8=2819y+y=4024-3X=355x-15x=1404x-80=012y-12=3620y+y=4280y-50=3020x=14080y+20=50080+5x=20042x+28x=28078y+2y=24025y-50=20023x-30=167x-8=63x-1=1488-x=18051y-y=2002x+9x=1165x+35=100y-90=909-4x=535y+1=712x-3(4x-9)=x-6 2(2x+7)=5-4(x-1)+21 2(3x-5)=13+5(5-2x) 48-(x+8)=3(x-4) 5(6-2x)+4=34+4(7-3x) 2x-