\(\left(x-140\right):7=27-8\times3\Rightarrow x=\left(27-24\right)\times7+140=161\)
Vậy x là 161
Đúng 0
Bình luận (0)
\(\left(x-140\right)\div7=27-8\times3\)
\(\Leftrightarrow\)\(\left(x-140\right)\div7=27-24\)
\(\Leftrightarrow\)\(\left(x-140\right)\div7=3\)
\(\Leftrightarrow\)\(\left(x-140\right)=3\times7\)
\(\Leftrightarrow\)\(x-140=21\)
\(\Leftrightarrow\)\(x=21+140\)
\(\Leftrightarrow\)\(x=161\)