x-0.8x=7.2
3个回答
0.2x=7.2
x=36
相关问题
2x^2-7x+7=0 2y^2-7y+8=0
2.5x7.8+7.4x7.8+0.78
0.625x...(8个0.625)x0.625x8x...(7个8)x8x2x2x...(6个2)x2
0.8x-2.7=0.6x
{2x-7y=8 3x-8y-7=0
2x-7(x-1)+8=0 x=?
0.8x+0.2(7-x)=3.8 怎么解
4x(0.8+x)=7.2, 0.75x+6=2x
解方程. X- 7 8 = 7 8 2 5 +X= 3 2 ; 3X=4 X÷0.4=0.16.
0.7x+12.3x=2.8+0.5x