\(x\cdot194-x\cdot93-x\cdot1=1200\)
\(x\left(194-3-1\right)=1200\)
\(100x=1200\)
\(x=12\)
x * 194 - x* 94 - x = 1200
x* 194 - x*93 - x *1 = 1200
x* ( 194 - 93 -1 ) = 1200
x * 100 = 1200
x= 1200 : 100
x= 12
\(\Leftrightarrow194x-93x-x=1200\)
\(\Leftrightarrow\left(194-93-1\right)x=1200\)
\(\Leftrightarrow100x=1200\)
\(\Leftrightarrow x=12.\)
x.194-x.93-x=1200
x.(194-93-1)=1200
x.100=1200
x=1200:100
x=12
vậy x=12
=> x*(194-93-1)=1200
=>x100=1200
=>x=12
