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`@` `\text {Ans}`
`\downarrow`
`a)`
`5(x + 35) = 515`
`=> x + 35 = 515 \div 5`
`=> x+ 35 = 103`
`=> x = 103 - 35`
`=> x = 68`
Vậy, `x = 68`
`b)`
`12x - 33 = 3^2 * 3^3`
`=> 12x - 33 = 3^5`
`=> 12x = 3^5 + 33`
`=> 12x = 276`
`=> x = 276 \div 12`
`=> x = 23`
Vậy, `x = 23`
`c)`
`6x - 5 = 19`
`=> 6x = 19 + 5`
`=> 6x = 24`
`=> x = 24 \div 6`
`=> x = 4`
Vậy, `x = 4`
`d)`
`4(x - 12) + 9 = 17`
`=> 4(x - 12) = 17 - 9`
`=> 4(x - 12) = 8`
`=> x - 12 = 8 \div 4`
`=> x - 12 = 2`
`=> x = 14`
Vậy, `x = 14`
`e)`
123 - 5(x + 4) = 38`
`=> 5(x + 4)= 123 - 38`
`=> 5(x + 4) =85`
`=> x + 4 = 85 \div 5`
`=> x + 4 = 17`
`=> x = 13`
Vậy, `x = 13`
`f)`
`(3x - 2^4) * 7^3 = 2 * 7^4`
`=> 3x - 2^4 = 2 * 7^4 \div 7^3`
`=> 3x - 2^4 = 2* 7`
`=> 3x - 2^4 = 14`
`=> 3x = 14 + 2^4`
`=> 3x = 30`
`=> x = 30 \div 3`
`=> x = 10`
Vậy, `x = 10.`
a ) 5(x + 35 ) = 515
x + 35 = 515 : 5
x + 35 = 103
x = 103 - 35
x = 68
a) x+35=515:5
x+35=103
x= 103-35=68
b) 96-3(x+1)=42
3(x+1)=96-42=54
x+1=54:3=18
x=18-1=17
c) 12x-33=32.33
12x - 33 = 9 . 27
12x - 33=243
12x = 243 +33
12x = 276
x= 276:12
x=23
a) 54 + ( 218 - x ) = 735
218 - x = 735 - 34
218 - x = 701
x = 218 - 701
x = -483
b) 96 - 3 ( x + 1 ) = 42
3 ( x + 1 ) = 96 - 42
3 ( x + 1 ) = 54
x + 1 = 54 : 3
x + 1 = 18
x = 18 - 1
x = 17
c) 5 ( x + 35 ) 515
x + 35 = 515 : 5
x + 35 = 103
x = 103 - 35
x = 68
d) 12x - 33 = 32 . 32
12x - 33 = 9.9
12x - 33 = 81
12x = 81 + 33
12x = 114
x = 114 : 12
x = 9,5
a) 54+(218-x)=735
218-x=681
x=-463
b) 96-3(x+1)=42
3(x+1)=54
x+1=18
x=17
c) 5(x+35)=515
x+35=103
x=68
d) 12x-33=3^2.2^2
12x-33=81
12x = 114
x=9,5
Nhấn đúng cho mk nha!!!!!!!!
a, 541 + (218 - x) = 735
218 - x = 735 - 541
218 - x = 194
x = 218 - 194
x = 24
Vậy x = 24
b, 5(x + 35) = 515
x + 35 = 515 : 5
x + 35 = 103
x = 103 - 35
x = 68
Vậy x = 68
c, 96 - 3(x + 1) = 42
3(x + 1) = 96 - 42
3(x + 1) = 54
x + 1 = 54 : 3
x + 1 = 18
x = 18 - 1 = 17
Vậy x = 17
d, 12x - 33 = 32 . 33
12x - 33 = 35
12x - 33 = 243
12x = 243 + 33
12x = 276
x = 276 : 12
x = 23
Vậy x = 23
Ủng hộ mk nha !!! ^_^
a) 80 - [130 - (12 -4)2 ]
= 80 - ( 130 - 82 )
= 80 - 116
= -36
b) 541 + (218 - b) = 735
218 - b = 194
b = 24
c) 5(x + 35) =515
x+35 = 103
x = 68
d) 96 - 3(x + 1) = 42
3(x+1) = 54
x+1 = 18
x = 17
12x - 33 = 32 . 33
12x - 33 = 243
12x = 276
x = 23
a) 541 + ( 281 - x ) =735
=>281-x=735-541
=>281-x=194
=>x=87
b)5.(x+35) = 515
=>x+35=515:5
=>x+35=103
=>x=68
c)96 - 3.( 9x+1) =42
=>3(9x+1)=96-42
=>3(9x+1)=54
=>9x+1=18
=>9x=17
=>x=17/9
d)12x-33=32*33
=>12x-33=9*27
=>12x-33=243
=>12x=276
=>x=23
c)96-3(x+1)=42
3(x+1)=96-42
3(x-1)=54
(x+1)=54:3
(x+1)=18
x=18-1
x=17
a, 541 + [218 - x] = 735
[ 218 - x ] = 735 - 541
[ 218 - x ] = 194
218 - x = 194
= 218 - 194
=24
a) 541 + ( 218 - x ) = 735
218 - x = 194
x = 24
b) 5 ( x + 35 ) = 515
x + 35 = 103
x = 68
c) 96 - 3 ( x + 1 ) = 42
3 ( x + 1 ) = 54
x + 1 = 18
x = 17
d ) 12x - 33 = 3 2 * 3 3
12x - 33 = 243
12x = 276
x = 23
a; 218-x=735-541
218-x=194
x=218-194
x=24
b; x+35=515/5
x+35=103
x=103-35
x=68
c;3*(x+1)=96-42
3*(x+1)=54
x+1=54/3
x+1=18
x=18-1
x=17
d;12x-33=243
12x=243+33
12x=276
x=276/12
x=23
a, 5(x+35)=515
(x+35)=103
x=68
b. 96 - 3( x+1) = 42
<=> 3( x +1 ) = 96 - 42 = 54
<=> x + 1 = 18
<=> x = 17