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\(\left(6x-39\right)\div3=201\)
\(6x-39=201.3\)
\(6x-39=603\)
\(6x=603+39=642\)
\(\Rightarrow x=642\div6=107\)
\(23+3x=5^6\div5^3\)
\(23+3x=5^{6-3}\)
\(23+3x=5^3=125\)
\(3x=125-23\)
\(3x=102\)
\(\Rightarrow x=34\)
\(541+\left(218-x\right)=735\)
\(218-x=735-541\)
\(218-x=194\)
\(x=218-194\)
\(x=24\)
\(5\left(x+35\right)=515\)
\(x+35=515\div5\)
\(x+35=103\)
\(x=103-35\)
\(x=68\)
a)(6x - 39) : 3 = 201
=> 6x - 39 = 603
=> 6x = 642
=> x = 107
b) 23 + 3x = 56 : 53
=> 23 + 3x = 53
=> 23 + 3x = 125
=> 3x = 102
=> x = 34
chúc bạn học tốt!! ^^
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\(\left(6x-39\right)\div3=201\)
\(6x-39=201.3\)
\(6x-39=603\)
\(6x=603+39\)
\(6x=642\)
\(x=642\div6\)
\(x=107\)
\(23+3x=5^6\div5^3\)
\(23+3x=5^3\)
\(23+3x=125\)
\(3x=125-23\)
\(3x=102\)
\(x=102\div3\)
\(x=34\)
Sửa:
(6x-39):3=201
6x-39=201.3
6x-39=603
6x=603+39
6x=642
x=107
23+3x=5^6:5^3
23+3x=5^3=125
3x=125-23
3x=102
x=102:3
x=34
a) ( 6x - 39 ) : 3 = 201
( 6x - 39 ) =201.3
( 6x - 39 ) =603
6x=603+39
6x=642
x=642:6
x=107
( 6x - 39 ) : 3 = 201
6x - 39 = 603
6x = 642
x = 107
23 + 3x = 56 : 53
23 + 3x = 125
2x = 102
x = 51
a) 25 + 3x = 25 - 1
3x = -1
x = -1/3
b) (6x-39):13 = 201
6x-39 = 2613
6x = 2652
x = 442
c) 2x + 35:34 = 510 : 58
2x + 3 = 25
2x = 22
...
a. (6x-39):3=201 \(b,23+3x=5^6:5^3\)
6x-39=201.3 \(23+3x=5^3\)
6x-39=603 \(23+3x=125\)
6x=603+39 \(3x=125-23\)
6x=642 \(3x=102\)
x=642:6 \(x=102:3\)
x=107 \(x=34\)
đúng nha
thanks bn nhìu
( 6x - 39) : 3 = 201
\(\Leftrightarrow6x-39=603\)
\(\Leftrightarrow6x=642\)
\(\Leftrightarrow x=107\)
23+3x=56:53
\(\Leftrightarrow23+3x=5^3\)
\(\Leftrightarrow3x=125-23\)
\(\Leftrightarrow3x=102\)
\(\Leftrightarrow x=34\)
( 6x - 39 ) :3 = 201
6x - 39 = 201 x 3
6x - 39 = 603
6x = 603 +39
6x = 742
x = 742 :6
x =122
chắc là đúng. Bạn nên thử lại