x+1/10-x-1/5=1 x/12-2x-1/20=3x+4/8-
1个回答
两边乘以10得
x+1-2x+2=10
-x=7
∴x=-7
2)
两边乘以120得
10x-12x+6=45x+60-120
-47x=-66
∴x=66/47
相关问题
(1)5x- 1 4 ×8=10 (2)12x+1.5=5.1 (3)5.5x-1.3x=12.6 (4)5(x-2.8
4【2x-1】-【10x+1】=3【2x+1]-12 x+3\4-2-3x\8=5\2
解方程:(1)4(2x+3)=8(1-x)-5(x-2);(2)x?10.3?x+20.5=1.2.
(1/2x3x4)+(1/3x4x5)+.+(1/10x11x12)
1/1x3+1/2x4+1/3x5+1/4x6+...+1/10x12
2x+1/6-4x-1/8=1 x-1/0.5-x+2/0.3=2 3/4[3/4(12x+1/4)-8]=3/2x+1
(1)4x-1.2=10.8-4x (2)1.2x+8.5=5x-1 (3)1.8-2.4x=8x-0.72速喥
4x15/2= 12/5x8= 3/1x4/1= 9/8x10= 6x12/11= 9/2x5/3= 14/6x9/7=
解方程 1.2x+0.8x=12.6 8x(5x-1.2)=20.4
解方程20-4x=5 3 5 : 7 12 = 9 10 :x 1 2 × 1 3 +75%x= 1 4 .