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![](https://rs.olm.vn/images/avt/0.png?1311)
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315 + (146 – x ) = 401
146 – x = 401 – 315
146 – x = 86
x = 146 - 86
x = 60
Vậy x = 60
![](https://rs.olm.vn/images/avt/0.png?1311)
\(124 - (118 - x) = 217\)
\(118-x=124-217\)
\(118-x=-93\)
\(x=118-\left(-93\right)\)
\(x=211\)
\(---\)
\(315+(146-x)=401\)
\(146-x=401-315\)
\(146-x=86\)
\(x=146-86\)
\(x=60\)
\(---\)
\(575-(6x+70)=445\)
\(6x+70=575-445\)
\(6x+70=130\)
\(6x=130-70\)
\(6x=60\)
\(x=60:6\)
\(x=10\)
\(---\)
\(315+(125-x)=435\)
\(125-x=435-315\)
\(125-x=120\)
\(x=125-120\)
\(x=5\)
#\(Toru\)
124 - ( 118 - x ) = 217
118 - x =124-217
118 - x =-93
x=118-(-93)
x= 211
315 + ( 146 - x ) = 401 \
146 - x=401-315
146 - x= 83
x= 146-83
x=63
575 - ( 6x + 70 ) = 445
6x + 70=575-445
6x + 70=130
6x=130-70
6x =60
x=60:6
x=10
315 + ( 125 - x ) = 435
125 - x=435-315
124-x=120
x=124-120
x=4
![](https://rs.olm.vn/images/avt/0.png?1311)
f) 315 + (146 – x) = 401
(146 – x) = 401-315
(146 – x) = 86
x = 146 – 86
x = 60
Vậy x = 60
![](https://rs.olm.vn/images/avt/0.png?1311)
a. x - 17 = 115
x = 115 + 17
x = 132
b. 315 + ( 146 - x ) = 401
146 - x = 401 - 315
146 - x = 86
x = 60
![](https://rs.olm.vn/images/avt/0.png?1311)
a) ( x - 47 ) - 115 = 0
( x - 47 ) = 0 + 115
( x - 47 ) = 115
x = 115 + 47
x = 162
b) 315 + ( 146 - x ) = 401
( 146 - x ) = 401 - 315
146 - x = 86
x = 146 - 86
x = 60
chúc bạn học tốt ^ _ ^
\(a)\)\(\left(x-47\right)-115=0\)
\(\left(x-47\right)=0+115\)
\(x-47=115\)
\(x=115+47\)
\(x=162\)
\(b)\)\(315+\left(146-x\right)=401\)
\(\left(146-x\right)=401-315\)
\(146-x=86\)
\(x=146-86\)
\(x=60\)
![](https://rs.olm.vn/images/avt/0.png?1311)
=> \(315+146-x=401\)
\(=>461-x=401\)
\(=>x=461-401\)
\(=>x=60\)
CHÚC BẠN HỌC TỐT...............
315 + ( 146 - x ) = 401
146 - x = 401 - 315
146 - x = 86
x = 146 - 86
x = 60
315 + ( 146 - x ) = 401
146 - x = 401 - 315
146 - x = 86
x = 146 - 86
x = 60