3(x+4)=3.5(x-4)
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答案52,x=52,解:3x+12=3.5x-14,3x+12-3x=3.5x-14-3x,12=0.5x-14,12+14=0.5x-14+14,26=0.5x,0.5x=26,0.5x➗0.5=26➗0.5,x=52,方程的解是x=52
咨询记录 · 回答于2022-12-28
3(x+4)=3.5(x-4)
答案52,x=52,解:3x+12=3.5x-14,3x+12-3x=3.5x-14-3x,12=0.5x-14,12+14=0.5x-14+14,26=0.5x,0.5x=26,0.5x➗0.5=26➗0.5,x=52,方程的解是x=52
答案52,x=52,解:3x+12=3.5x-14,3x+12-3x=3.5x-14-3x,12=0.5x-14,12+14=0.5x-14+14,26=0.5x,0.5x=26,0.5x➗0.5=26➗0.5,x=52,方程的解是x=52