674 - { 12 + x } =427
12 + x =674 - 427
12 + x =247
x =247-12
x=235
k minh nhe
\(674-\left(12+x\right)=427\)
\(12+x=674-427\)
\(12+x=247\)
\(x=247-12\)
\(x=235\)
:D
\(674-\left(12+x\right)=427\)
\(12+x=674-427\)
\(12+x=247\)
\(x=235\)
674 - ( 12 + x ) = 427
12 + x = 674 - 427
12 + x = 247
x = 247 - 12
x = 235
Vậy x = 235
Ta có: 674 - (12 + x ) = 427
=>674 - 12 - x =427
=> -x = 472 - 674 + 12
=>-x =-190
hay x = 190
\(674 - ( 12 + x ) = 427 \)
\(( 12 + x ) = 674 - 427 \)
\(( 12 + x ) = 247 \)
\(x = 247 - 12 \)
\(x = 235 \)
\(674-\left(12+x\right)=427\)
\(674-12-x=427\)
\(662-x=427\)
\(x=662-427\)
\(x=235\)
{ 12 + x }= 674 - 427
12 + x = 247
x =247- 12
x =235
674 - { 12 + x } = 427
12 + x = 674 - 427
12 + x = 247
x = 247 - 12
x = 235
12+x=674-427
12+x=247
x=247-12
x=235
\(674 - ( 12 + x ) = 427 \)
\(( 12 + x ) = 674 - 427 \)
\(( 12 + x ) = 247 \)
\(x = 247 - 12 \)
674 - { 12 + x } = 427
12 + x = 674 - 427
12 + x = 247
x = 247 - 12
x = 235
a)674-(12+x)=427
\(\Rightarrow12+x=674-427\)
\(\Rightarrow12+x=247\)
\(\Rightarrow x=247-12\)
\(\Rightarrow x=235\)
Vậy x=235
674 - (12 + x) = 427
=> 12 + x = 674 - 427
=> 12 + x = 247
=> x = 247 - 12
=> x = 235
Vậy x = 235
674 - ( 12 + x ) = 427
( 12 + x ) = 674 - 427
( 12+ x ) = 247
x = 247 - 12
x = 235
Chúc bạn học tốt ! :>
a)674-(12+x)=427
⇒12+x=674−427
⇒12+x=247
⇒x=247−12
⇒x=235
Vậy x=235
a, 674 - ( 12 + x ) = 427
12 + x = 674 - 427
12 + x = 247
x = 247 - 12
x = 235
674 - ( 12 + x ) = 427
12 + x = 674 - 427
12 + x = 247
x = 247 - 12
x = 235
Học giỏi ! :)
674 - (12 + x) = 427
12 + x = 674 - 427
12 + x = 247
x = 247 - 12 = 235
Chúc bạn học tốt!