Xx30x0.8=(X-5)x0.9x30怎么解
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答案,解:24x=27(x-5),24x=27x-135,24x-24x=27x-135-24x,0=3x-135,0+135=3x-135+135,135=3x,3x=135,3x➗3=135➗3,x=45,方程的解是x=45
咨询记录 · 回答于2022-12-31
Xx30x0.8=(X-5)x0.9x30怎么解
好
答案,解:24x=27(x-5),24x=27x-135,24x-24x=27x-135-24x,0=3x-135,0+135=3x-135+135,135=3x,3x=135,3x➗3=135➗3,x=45,方程的解是x=45
答案,解:24x=27(x-5),24x=27x-135,24x-24x=27x-135-24x,0=3x-135,0+135=3x-135+135,135=3x,3x=135,3x➗3=135➗3,x=45,方程的解是x=45
谢谢
答案45,x=45解:24x=27(x-5),24x=27x-135,24x-24x=27x-135-24x,0=3x-135,0+135=3x-135+135,135=3x,3x=135,3x➗3=135➗3,x=45,方程的解是x=45