\(272+\left(146+x\right)=118\)
\(272+146+x=118\)
\(418+x=118\)
\(x=118-418\)
\(x=-300\)
Bài làm
a) 272+ ( 146 + x ) = 118
146 + x = 272 - 118
146 + x = 154
x = 154 - 146
x = 8
Vậy x = 8
b) 272 - ( 4.x + 15 ) = 45
4x + 15 = 272 - 45
4x + 15 = 227
4x = 227 - 15
4x = 112
x = 112 : 4
x = 28
Vậy x = 28
c) x - 36 : 18 = 16
x - 2 = 16
x = 18
Vậy x = 18
# Học tốt #
1>=> 146+x=-154
=>x=-300
2> => 4x+15=227
=>4x=212
=>x=53
37>=> x- 2=16
==>x=18
Tham khảo :
\(272+\left(146+x\right)=118\)
\(146+x=118-272\)
\(146+x=-154\)
\(x=-154-146\)
\(\Rightarrow x=-300\)
\(272-\left(4x+15\right)=45\)
\(4x+15=272-45\)
\(4x+15=227\)
\(4x=227-15\)
\(4x=212\)
\(x=212:4\)
\(\Rightarrow x=53\)
\(x-36:18=16\)
\(x-2=16\)
\(x=16+2\)
\(\Rightarrow x=18\)
Bài làm
a) 272+ ( 146 + x ) = 118
146 + x = 272 - 118
146 + x = 154
x = 154 - 146
x = 8
Vậy x = 8
b) 272 - ( 4.x + 15 ) = 45
4x + 15 = 272 - 45
4x + 15 = 227
4x = 227 - 15
4x = 112
x = 112 : 4
x = 28
Vậy x = 28
c) x - 36 : 18 = 16
x - 2 = 16
x = 18
Vậy x = 18
# Chúc bạn học tốt #
\(b,\text{ }272-\left(4\cdot x+15\right)=45\)
\(4\cdot x+15=272-45\)
\(4\cdot x+15=227\)
\(4\cdot x=227-15\)
\(4\cdot x=212\)
\(x=212\text{ : }4\)
\(x=53\)
\(a,\text{ }\text{ }272+\left(146+x\right)=118\)
\(272+146+x=118\)
\(418+x=118\)
\(x=118-418\)
\(x=-300\)
\(b,\text{ }272-\left(4\cdot x+15\right)=45\)
\(4\cdot x+15=272-45\)
\(4\cdot x+15=227\)
\(4\cdot x=227-15\)
\(4\cdot x=212\)
\(x=212\text{ : }4\)
\(x=53\)
Bài làm
a) 272+ ( 146 + x ) = 118
146 + x = 272 - 118
146 + x = 154
x = 154 - 146
x = 8
Vậy x = 8
b) 272 - ( 4.x + 15 ) = 45
4x + 15 = 272 - 45
4x + 15 = 227
4x = 227 - 15
4x = 112
x = 112 : 4
x = 28
Vậy x = 28
c) x - 36 : 18 = 16
x - 2 = 16
x = 18
Vậy x = 18
# Học tốt #
a, 272 + ( 146 + x ) = 118
146 + x = 118 -272
146 + x = -154
x = -154 - 146
x = -300 vay x = 300
b, 272 + ( 4.x + 15 ) = 45
4 . x + 15 = 272 - 45
4.x + 15 += 227
4.x = 227 - 15
4.x = 212
x = 212 : 4
x = 54 vay x= 54
c = x- 36 : 18 = 16
x- 2 = 16
x = 16+ 2
x = 18 vay x= 18