(237-4x)+29=166
(237-4x)=166-29
237-4x=137
4x=237-137=100
=>x=100:4=25
Học tốt
(237 - 4x) + 29 = 166
237 - 4x = 166 - 29
237 - 4x = 137
4x = 237 - 137
4x = 100
x = 100 : 4
x = 25
Vậy, x = 25
Bạn vui lòng t.i.c.k cho mik nha, cảm ơn nhiều :))
( 237 - 4x ) + 29 = 166
( 237 - 4x ) = 166 - 29
237 - 4x = 137
4x = 237 - 137
4x = 100
x = 100 : 4
x = 25
\(\left(237-4x\right)+29=166\)
\(\Rightarrow\left(237-4x\right)=166-29\)
\(\Rightarrow\left(237-4x\right)=137\)
\(\Rightarrow4x=237-137\)
\(\Rightarrow4x=100\)
\(\Rightarrow x=25\)
(237 - 4x) + 29 = 166
237 - 4x = 166 - 29
237 - 4x = 137
4x = 237 - 137
4x = 100
x = 100 : 4
x = 25