第五单元解方程习题一、解方程20X50=50 28+6X=88 3222X=10 3X+5X=48 243X=3 99X=100X X+3=18 X6=12 (0.5+X)+X=9.82 12X8X=4.8 7.52X=15 4(X5.6)=1.6 14X8X=12 562X=20 7(6.5+X)=87.5 12X=3004X30X+25=85 1.482X=6 6X12.83=0.06 15X3 0.273X=0.35 1.8X=0.972 5x34=3x54 2(X+X+0.5)=9.8 7x27=13 3x 7.4(x2.1)=6 x(30.5)=125(x3)=35 x3.7x2=16.1 14x3x1.2x=158x13.45.2=1.57 5x2x=1.40.07 7x31.4x=0.2560.30.1525x=12 14x3=6.34 4x2（5x）=327x31.4x=0.256 5(32x)=2.45 2x4（35x）=94
