5x-0.5=8 [x-4.6]×2.3=9.338 3x-1.45=2x+1.45 3.5x+x-14=18.4
问题描述:
5x-0.5=8 [x-4.6]×2.3=9.338 3x-1.45=2x+1.45 3.5x+x-14=18.4
以上的,怎么解方程,步步要列出来
答
5x-0.5=8 5x=8.5x=8.5÷5x=1.7[x-4.6]×2.3=9.338 x-4.6=9.338÷2.3x-4.6=4.06x=4.06+4.6x=8.663x-1.45=2x+1.45 3x-2x=1.45+1.45x=2.93.5x+x-14=18.43.5x+x=18.4+144.5x=32.4x=32.4÷4.5x=7.2