80%-4=(1-2/5)x+8
6个回答
0.8-4=0.6x+8
0.6x=0.8-4-8
0.6x=-11.2
x=-11.2÷0.6
x=-56/3
相关问题
(7.5/1+5/1)+5/1(x-1)=1 80/xX2+80/x+5 x8=4/3
解x-2/5x+8=80%x-4
(1- 2/5) x + 8 = 80% x-
8.4x-2.8x+6=80.8-1.2x
解方程或解比例. ①40%x-1.8×4=0.8 ②2x:2.5=6:5 ③[3/4]x-(1-80%)x=4.95.
解方程或解比例. ①40%x-1.8×4=0.8 ②2x:2.5=6:5 ③[3/4]x-(1-80%)x=4.95.
解方程:2x/80+8/(x+5)=3/4
1.7x+x=8.1 (1.6+x)=10.4 x-0.36x=1.6 4(x-26)=80 5.6-2x=4 1.8÷
4X-1.8=4.8.2.5X-2.5=7.5.5X-1.8=4.3X+1.5=6.求X
解下列方程.(1)7.2x=25.2(2)5.6x+8×7.06=80(3)4(x-5×3.5)=12.8.