(5x-12)/(x+12)=7/5
2个回答
(5x-12)/(x+12)=7/5 可得:
5(5x-12)=7(x+12)
25x-60=7x+84
25x-7x=84+60
18x=144
x=8
相关问题
2/7x(-5/12)-5/7x5/12-5/3x1/4
(5x-12):(x+12)=7:5的解方程
3X+12.5=5X+7.7
( )x+12=48 2.5x-( )=12.7 5x+4乘(
12+x/(5+x)=12/7 解方程
12-(3x-5)=7-5x
方程组 {x/5+y/7=12 y/5+x/7=12}的解是.
x+12=(5x+12)X 7分之3
5X+8=13 5X+2=12 5X+7=12 5X+9=19 5X+11=21
解方程.7x-9=5x5(x-8)=3x 7x-5x5=2x7X12-10x=18x3(6x-7)=15x+12