(1)2x=1/4 (2)1/3x-1/6x=6 (3)x-1/4x=3:8
3个回答
解
2x=1/4
x=1/4÷2
x=1/8
1/3x-1/6x=6
两边乘以6得:
2x-x=36
x=36
x-1/4x=3:8
3/4x=3/8
x=3/8×4÷3
x=3/2×1/3
=1/2
相关问题
6(x+1)=4(x+4) 6(x-1)=4(3-2x) 5-3x=8-4x 5-(x+3)=4-3x 1/2(x+6)
求近似值问题√1+X=1+1/2X-1/(2*4)X^2+1*3/(2*4*6)X^3-1*3*5/(2*4*6*8)X
2x+1/6-4x-1/8=1 x-1/0.5-x+2/0.3=2 3/4[3/4(12x+1/4)-8]=3/2x+1
x-1/4x=3/8 2/3x+1/2x=42 x-1/4=1/2 x-0.8x=22 x+3/4=6
1、2x+6x-1.6=0.4*10 2、16-3x=2x-6 3、4.2*3-3x=5.1 4、x-0.8x=6 5、
2(x-1)+3(4x-1)=9(x-1)+12 15(x-8)-4(2x+3)=6(6-x)-100 4(2x-1)-
1)x÷0.7+1.2乘3=4.1(2)6.4x+3.6x=100(3)(x+4.6)÷1.2=7.8 (4)1.6x-
1/1x2x3x4+1/2x3x4x5+1/3x4x5x6+1/4x5x6x7+1/5x6x7x8+1/6x7x8x9+
3x-1/4-5x-1/6=9x+1/8+1 2(x+1)+1/3-2-3(x+1)/4=x
4/5x+2=-1/3x-1.-5/6x+2=-1/3x-1.6(x-4)=-3(4+2x).