(1)3X-5=X+2 (2)3-2(X+1)=2(X-3) (3)(2X+1)/3-(5X-1)/6=1 (4) (0.02X+0.05)/0.03-(0.04X-0.3)/0(1)3X-5=X+2 (2)3-2(X+1)=2(X-3) (3)(2X+1)/3-(5X-1)/6=1 (4) (0.02X+0.05)/0.03-(0.04X-0.3)/0.2=2 括号内是分子,/后面
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(1)3X-5=X+2 (2)3-2(X+1)=2(X-3) (3)(2X+1)/3-(5X-1)/6=1 (4) (0.02X+0.05)/0.03-(0.04X-0.3)/0(1)3X-5=X+2 (2)3-2(X+1)=2(X-3) (3)(2X+1)/3-(5X-1)/6=1 (4) (0.02X+0.05)/0.03-(0.04X-0.3)/0.2=2 括号内是分子,/后面
(1)3X-5=X+2 (2)3-2(X+1)=2(X-3) (3)(2X+1)/3-(5X-1)/6=1 (4) (0.02X+0.05)/0.03-(0.04X-0.3)/0
(1)3X-5=X+2 (2)3-2(X+1)=2(X-3) (3)(2X+1)/3-(5X-1)/6=1 (4) (0.02X+0.05)/0.03-(0.04X-0.3)/0.2=2 括号内是分子,/后面是分母
(1)3X-5=X+2 (2)3-2(X+1)=2(X-3) (3)(2X+1)/3-(5X-1)/6=1 (4) (0.02X+0.05)/0.03-(0.04X-0.3)/0(1)3X-5=X+2 (2)3-2(X+1)=2(X-3) (3)(2X+1)/3-(5X-1)/6=1 (4) (0.02X+0.05)/0.03-(0.04X-0.3)/0.2=2 括号内是分子,/后面
1)3X-5=X+2
3x-x=7
2x=7
x=3.5
(2)3-2(X+1)=2(X-3)
3-2x-2=2x-6
4x=1+6
4x=7
x=7/4
(3)(2X+1)/3-(5X-1)/6=1
4x+2-5x+1=6
-x=3
x=-3
(4) (0.02X+0.05)/0.03-(0.04X-0.3)/0.2=2
(2x+5)/3-(2x-15)/10=2
20x+50-6x+45=60
14x=-35
x=-2.5