300道解方程题.docx

1、300道解方程题+x)+x=2 2(X+X+= 25000+x=6x 3200=450+5X+X =6 12x-8x= *2X=15 = x+= = 91x X+= 15x3 3x816 7(x-2)=2x+3 3x+9=2718(x-2)=270 12x=300-4x 7x+= 3x5= 30x+25=85 8-2x=6 3= 410-3x=170 3(x+=21 +8=43 6x-3x=18 +18=3x 53-x2=8 x= 5(x+5)=100 x+3x=70 3(x+3)=50 = x=90 9x-40=5 x5+9=21 48-27+5x=31 +x+21=56 x+2x+18=7

2、8 (200-x)5=30 (x-140)70=4 (x+6)= 4= x+= = = x= 5x+= 5(x+8)=102 x+3x+10=70 3(x+3)=50-x+3 5x+15=60 =2 7+4x= x 6= 20-9x= 6x+= 1502+3x=690 2x-20=4 3x+6=18 2+x)= (x-3)2= +9x= 3x=x+100 x+= 6x+18=48 3(x+= 12x-9x= 13(x+5)=169 2x-97= = 42x+25x=134 (x+= 2(x-3)= 65x+7=42 9x+491 x+134 +=51 89x-43x= 5x-45=100 =2

3、x=56 4x-x= =28 = 15 5X-2X=18 3X+=5 2= +x 26= 2x+10 1616=4x 13 X= X=0. 3 23x=14x14 x14x=65 35x80 +6x54 94x40 2x+8=16 23x-14x=14 x+7x=8 9x-3x=6 6x-8=4 5x+x=9 x-8=6x 4/5x=20 2x-6=12 7x+7=14 6x-6=0 5x+6=11 2x-8=10 1/2x-8=4 x-5/6=7 3x+7=28 3x-7=26 9x-x=16 24x+x=50 6/7x-8=4 3x-8=30 6x+6=12 3x-3=1 5x-3x=4

4、2x+16=19 5x+8=19 14-6x=8 15+6x=27 5-8x=4 7x+8=15 9-2x=1 4+5x=9 10-x=8 8x+9=17 9+6x=14 x+9x=4+7 2x+9=17 8-4x=6 6x-7=12 7x-9=8 x-56=1 8-7x=1 x-30=12 6x-21=21 6x-3=6 9x=18 4x-18=13 5x+9=11 6-2x=11 x+4+8=23 7x-12=8 = 15 5X-2X=18 3X =5 2= x 26= 2x 1616=4x X= X= X= 35x80 54 94x40 124x20 1/3x5/6x 12x34x=1

5、18x14x=12 23 x514=14 1234x=56 2214x=12X+= 5x 30 = x=90 3x816 3x+9=27 +7x= 3x5=6 12x+8x= 7(x-2)=49 48+2x=36 (x-2)3=7 x5+9=21 (200-x)5=30 48-27+5x=31 = 5X-3X=68 4X+10=5 320=45+6X =8 x+= 522x15 13x X+= 15x 30 3x+936 7(x-2)=7 3x+9=12 18(x-2)=27 12x=320+4x +x= 153x=5 30x=85 +2x=6 420-3x=170 3(x+5)=18 +9=

6、40 6x+3x=36 +6=3x 53-x=8 40-8x=5 x5=21 48-20+5x=31 x+2x+8=80 200-x5=30 70x =4 3x = = 5(x+5)=100 x+3x=70 3(x+3)=50 4（4x1）=3（22x） 7（2x-6）=845（x-8）=3x 7x-7=6x+422-x+2=68x 8x-6x+30=12x+157（x+2）=5x+60 240（x7）=30 （20-8x）3=2x+1 （6x-40）8=5x-8 128x=3 （21+4x）2=10x+14 8x-156=3x-20 （2x+7）2=4x+143x+9=27 7x+= x+=

7、 =3x-8=30 6x+6=12 3x-3=1 5x-3x=4 2x+16=195x+8=19 15+6x=27 7x+8=15 4+5x=9 8x+9=179+6x=14 x+9x=4+7 2x+9=17 6x-7=12 7x-9=8 x-56=1 = 3200=450+5x+x =6 12x-8x= = x-30=12 6x-21=21 6x-3=6 9x=18 4x-18=13 5x+9=11 x+= 15x 3 3x816 3x5= x+2x+18=78 +8=43 6x-3x=18 = x=90 9x-40=53= x5+9=21 48-27+5x=31 +x+21=56(x+6)

8、= 3200=450+5x+x =6 12x-8x= 2x=15 x+= = x+= 15x 3 3x-816 3x+9=27 7x+= 3x5= 3= +8=43 6x-3x=18 = x=90 9x-40=5 x5+9=21 48-27+5x=31 +x+21=56 x+2x+18=78 x+= = 5x+= x+3x+10=70 5x+15=60 7+4x= x 6= 6x+=1502+3x=690 2x-20=4 3x+6=18 +9x= x+=6x+18=48 12x-9x= 2x-97= = 42x+25x=13465x+7=42 9x+491 x+134 +=5189x-43x=

9、 5x-45=100 4x-x= =28= 5x-2x=18 3x+=5 2= +x 26= 2x+101616=4x x14x=65 +6x54 94x 40 2x+8=16 23x-14x=14 x+7x=8 9x-3x=6 7x-12=9 6x-8=4 5x+x=9 2x-6=12 7x+7=14 6x-6=0 5x+6=11 2x-8=10 3x+7=28 3x-7=26 9x-x=16 24x+x=50 x+4+8=23 = 5x-2x=18 =5 26= 2x 16-16=4x x= 9 4x40 18x14x=12 23 x514=24 1234x=56= 5X-3X=68 4X

10、+10=5 320=45+6X =8 x+= 522x15 13x X+= 15x 30 3x+936 7(x-2)=7 3x+9=12 18(x-2)=27 12x=320+4x,+x= 153x=5 30x=85 +2x=6 420-3x=170 3(x+5)=18+9=40 6x+3x=36 +6=3x 53-x=8 40-8x=5 x5=2148-20+5x=31 x+2x+8=80 200-x5=3070x =4 3x = = +x)+x=22(X+X+=25000+x=6x3200=450+5X+X=612x-8x=15=3x8167(x-2)=2x+318(x-2)=27012x=300-4x7x+=30x+25=858-2x=63=3(x+=2153-x2=8x=90x5+9=2148-27+5x=31+x+21=56x+2x+18=78(200-x)5=30(x-140)70=4(x+6)=4=32y-29=35x+5=1589x-9=80100-20x=2055x-25x=6076y-75=123y-23=234x-20=080y+20=10053x-90=162x+9x=1112y-12=24