7(x+5)-(x+1)=5(x-1)
6个回答
7(x+5)-(x+1)=5(x-1)
7x+35-x-1=5x-5
7x-x-5x=-5-35+1
x=-39
相关问题
[X-(1/5X+5)-(1/4x-7)]+(1/5X+5)+(1/5X+7)+1/8X=X
x-1/7x+16-1/5(x-1/7x+16)+5=x+9
3(x+5)+5[(x+5)-1]=7(x+5)-1
1.(2x²-3x-7)乘5x-7(1-5x)
5(x-1)-7(x+5)=11(x+1)
1/3X1/5=1/15=(1/3-1/5)X1/2,1/5X1/7=1/35=(1/5-1/7)X1/2,1/7X1/
6x+13.5=50+x 7.8x-1.7+1.2x=5.5
3/1-x-5/7-x+x²-x/(x-1)(x-7)=1
1X1/3+3X1/5+5X1/7+7X1/9+.+99X1/101=?
(5-7X)/8=(7-5X)/7-1