五年级经典解方程50题(2)

(0.5+x)+x=9.8 2(X+X+0.5)=9.8 25000+x=6x 3200=450+5X+X X-0.8X=6 12x-8x=4.8 7.5+2X=15 1.2x=81.6 x+5.6=9.4 x-0.7x=3.6 91 = 1.3 X+8.3=10.7

(27.5-3.5) x附3x —8 =

7(x-2)=2x+3

16

3x+9=27 18(x-2)=270 12x=300-4x

7x+5.3=7.4 3x 弋=4.8 30乡+25=85

1.4 >8-

2x=6

6X-12.8 8=0.06 410-3x=170 3(x+0.5)=21 0.5x+8=43 6x-3x=18 1.5x+18=3x 5X3-x -2=8 0.273 -=0.35 1.8x=0.972 x -).756=90 9x-40=5

x吒

+9=21 48-27+5x=31 10.5+x+2 仁

56

x+2x+18=78 (200-x) 5=30 (x-140) 70=4

0.1(x+6)=3.3 X4 4(x-5.6)=1.6 7(6.5+x)=87.5