x+1.8=4.2 x+1.8-1.8=4.2-1.8 x=2.4 怎么检验
2个回答
检验
将x=2.4代人左边,
x+1.8=2.4+1.8=4.2 =右边
相关问题
(1)4x-1.2=10.8-4x (2)1.2x+8.5=5x-1 (3)1.8-2.4x=8x-0.72速喥
(x-1)/1-(x+1)/1-(x^2+1)/2-(x^4+1)/4-(x^8+1)/8
x-(1/8x+4)-1/6(x-(1/8x+4))-2=88怎么解+详细
(1)/(1+x)+(2)/(1+x^2)+(4)/(1+x^4)+(8)/(1+x^8)+…+(n)/(1+x^n)-
8x+2/4x-1的计算结果.8x+2-------4x-1
解方程:(1)1.2x-1.4=8.2 (要检验)
2X-2.8x2.5=8.96 8X+2X=31.4 2x(X+1)=6 7.8X2.4X=1.08
已知x+1/x=2 求x^8+x^4+x^2+1/x^2+1/x^4+1/x^8
解比例:(1)x:24=3:8(2)8.1:x=1.8:36(3)[1/2]:[2/3]=6:x(4)[4.8/1.6]
计算[x+(1)/x][x^2+(1)/x^2][x^4+(1)/x^4][x^8+(1)/x^8][x^16+(1)/