Tìm số tự nhiên x,biết:
a) ( x - 35 ) - 120 = 0
<=> x - 35 = 0 + 120
<=> x - 35 = 120
<=> x = 120 + 35
<=> x = 155
Vậy x = 155
b) 124 + ( 118 - x ) = 217
<=> 118 - x = 217 - 124
<=> 118 - x = 93
<=> x = 118 - 93
<=> x = 25
Vậy x = 25
c) 156 - ( x + 61 ) = 82
<=> x + 61 = 156 - 82
<=> x + 61 = 74
<=> x = 74 - 61
<=> x = 13
Vậy x = 13
a. (x - 35) - 120 = 0
x - 35 = 0 + 120
x = 120 + 35
x = 155
b. 124 + (118 - x) = 217
118 - x = 217 - 124
x = 118 - 93
x = 25
c. 156 - (x + 61) = 82
x + 61 = 156 - 82
x = 74 - 61
x = 13
a) ( x - 35 ) - 120 = 0
x - 35 = 120
x = 155
b ) 124 + ( 118 - x ) = 217
118 - x = 217 - 124
118 - x = 93
x = 118 - 93
x = 25
c) 156 - ( x + 61 ) = 82
x + 61 = 156 - 82
x + 61 = 74
x = 13
đúng nha, k nha
a,(x-35)-120=0
x-35=0+120
x-35=120
x=120+35
x=155
b,124+(118-x)=217
118-x=217-124
118-x=93
x=118-93
x=25
c,156-(x+61)=82
x+61=156-82
x+61=74
x=74-61
x=7
chúc bé sushi học tốt nha!
a,(x-35)-120=0
x-35=0+120
x-35=120
x=120+35
x=155
b,124+(118-x)=217
118-x=217-124
118-x=93
x=118-93
x=25
c,156-(x+61)=82
x+61=156-82
x+61=74
x=74-61
x=13
lm như thế mà ko hiểu nx thì e quỳ
a﴿ ﴾ x ‐ 35 ﴿ ‐ 120 = 0
<=> x ‐ 35 = 0 + 120
<=> x ‐ 35 = 120
<=> x = 120 + 35
<=> x = 155
Vậy x = 155
b﴿ 124 + ﴾ 118 ‐ x ﴿ = 217
<=> 118 ‐ x = 217 ‐ 124
<=> 118 ‐ x = 93
<=> x = 118 ‐ 93
<=> x = 25
Vậy x = 25
c﴿ 156 ‐ ﴾ x + 61 ﴿ = 82
<=> x + 61 = 156 ‐ 82
<=> x + 61 = 74
<=> x = 74 ‐ 61
<=> x = 13
Vậy x = 13
a) ( x - 35 ) - 120 = 0
<=> x - 35 = 120
<=> x = 155
b) 124 + ( 118 - x ) = 217
<=> 118 - x = 93
<=> x = 25
c) 156 - ( x + 61 ) = 82
<=> x + 61 = 74
<=> x = 13
