0.5,1,( ),2,(),3
0.5+(-3/4)+(-5.25)+(+1/2)
(x+1)/2-1=(3x-1)/0.5
(1) (2) (3)(x+0.5)×2分之1=4
-1³-(1-0.5)×3分之1×(2-(-3²))
计算-1-【2-(1-1/3×0.5)】×【3²-(-2)²】
计算:-2³-(1-0.5)*3分之1*[2-(-3)²]
17、(1/2-1/3)2×8 18、-23-(1+0.5)×1/3÷(-2)
(1)2(4x-0.5) (2)-3(1-6/1x) (3)-x+(2x-2)-(3x+5)
(0.5x/10+0.5x/30-40/60)*1/2*10+(0.5x/10+0.5x/30-40/60)*1/2*3
2-3(x+1)=1-2(1+0.5x)
2-3(x-1)=1-2(1+0.5x)
1(-1/5)*2/13*(-5) 2(-7又3/8)*(-0.5)*(-2)