a) \(x:15=37=>x=37.15\)
\(=>x=555\)
b) \(554:x=17\)
\(=>x=554:17\)
\(=>x=\frac{554}{17}\)
c) \(15\left(x-9\right)=0\)
\(=>x-9=0=>x=9\)
d) \(0:x=0\)
\(=>x\in R\)
e) \(\left(x-714\right)-142=0\)
\(=>x-714=142\)
\(=>x=856\)
g) \(315+\left(146-x\right)=401\)
\(=>146-x=86\)
\(=>x=60\)
a/ x:15=37
x=37.15
x=555
b/ 544:x=17
x=544:17
x=32
c/ 15(x-9)=0
(x-9)=0:15
(x-9)=0
x-9=0
x=0+9
x=9
d/ 0:x=0
x=0:0
x=0
e/ (x-714)-142=0
(x-714)=0+142
(x-714)=142
x-714=142
x=142+714
x=856
g/ 315+(146-x)=401
(146-x)=401-315
(146-x)=86
146-x=86
x=146-86
x=60
CHÚC BẠN HỌC TỐT NHA!