解方程1/2{1/3[1/4(1/5x+5)-4]+3}=1

问题描述:

解方程1/2{1/3[1/4(1/5x+5)-4]+3}=1
① 1/2{1/3[1/4(1/5x+5)-4]+3}=1
②2[1-1/3( x- x+1/3 )]=3[x/6-1/2(2x - 10-7x/3)]

①1/2{1/3[1/4(1/5x+5)-4]+3}=1两边乘以2得1/3[1/4(1/5x+5)-4]+3=21/3[1/4(1/5x+5)-4]=-1两边乘以3得1/4(1/5x+5)-4=-31/4(1/5x+5)=1两边乘以4得1/5x+5=41/5x=-1x=-5 ②2[1-1/3(x-x+1/3)...5x-0.4/0.3 +1.3-3x/2=1.8-8x/2请采纳,再求助,非常感谢