\(124+\left(13-16\right)=162-\left(x+162\right).\)
\(124+13-16=162-\left(x+162\right)\)
\(121=162-\left(x+162\right)\)
\(41=x+162\)
\(x=41-162=\left(-121\right)\)
124 + ( 13 – 16 ) = 162 – ( x + 162 )
124 + (-3) = 162 - ( x + 162 )
121 = 162 - ( x + 162 )
\(\Rightarrow\)162 - ( x + 162 ) = 121
162 - x - 162 = 121
( 162 - 162 ) - x = 121
0 - x = 121
- x = 121
\(\Rightarrow\) x = -121
124 + ( 13 – 16 ) = 162 – ( x + 162 )
124 + ( -3 ) = 162 - ( x + 162 )
121 = 162 - ( x + 162 )
Đổi vế ta có :
162 - ( x + 162 ) = 121
x + 162 = 162 - 121
x + 162 = 41
x = 41 - 162
x = -121
124+(13-16)=162-(x+162)
124+(-3)=162-x-162
121=(162-162)-x
121=0-x
121=-x
=>x=-121
