文档介绍：一、解方程专题7+=19X+120=17658+X=90X+150=29079・4+X=95・52X+55=1297X=63Xx9===90Xx5==124X-6=19X-=-=-=100X-77=275X-77=144X4-7==10Xv78=*2・5=100Xv3==89-X=-X=-X=2266-X=-X=-X=-X=・8K=4・49vX=-rX==539vX=33x(X-4)=46(8+X)v5=15(X+5)v3=1615v(X+)=+8X=4012X-8X=4012X+X=26X+=6X-=326x5+2X=+X=263X+5X=4814X-8X=1220X-50=5028+6X=8832-22X=1024-3X=3lOXx(5+1)=6099X=100-XX+3=18X-6=1256-2X=204X+2=6X+32=763X+6=1816+8X=402X-8=84X-3x9=298X-3X=105X-6x5=42X+5=72X+3=10X-=612X+8X=(X-2)=494x8+2X=36(X-2)-r3=7X4-5+9=21(200-X)-r5=3048-27+5X=313X-8=163X+9=+7X==-X=840-8X=5X^5=215X+25=100X+15=302X+8=2020-2X=62X+9=3135-5X=105(X-6)=2010(9-X)=206(X-3)=123(X-9)=3354-X=247X=491264-X=4212^X=-X==+6X5=379HXEX68HX卜+x91>8+xz691:丄S+x)mT卜606NX'X6l<『)X9H8X9TH8+XZ8HXZ.+X6HX+XSUH9XZ寸"8x9OZHXS-l-寸6HX+XS9HXEX6X9H8X寸"8x9