(10.7-x)/5.8=(12.8-x)/7.9怎么计算
3个回答
两边乘45.82
84.53-7.9x=74.24-5.8x
2.1x=10.29
x=10.29÷2.1
x=4.9
相关问题
12x-9x=8.7 怎么解方程
解方程.7x-9=5x5(x-8)=3x 7x-5x5=2x7X12-10x=18x3(6x-7)=15x+12
12x-9x=8.7
12x-9x=8.7,
12x-9x=8.7
计算3*4/5*4+5*6/7*6+7*8/9*8+9*10/11*10+11*12/13*12+13*14/15*14
7/8+5/6,8/9-7/12,3/10+3/5,
12.5X0.7X0.8简便计算
(x-4)/(x-5)+(x-8)/(x-9)-(x-5)/(x-6)-(x-7)/(x-8)分式计算
4x15/2= 12/5x8= 3/1x4/1= 9/8x10= 6x12/11= 9/2x5/3= 14/6x9/7=