123 + 236 x 3 + 2480 = ?
234+235+236-123-123=?
\(234+235+236-123-123\)
\(=459\)
k nhé chúc học tốt
4. Tìm x biết :
a) (125 + x) + 68 = 236
b) 2x - 1= 123
a) \(\left(125+x\right)+68=236\)
\(\Rightarrow125+x=236-68\)
\(\Rightarrow125+x=168\)
\(\Rightarrow x=168-125\)
\(\Rightarrow x=43\)
b) \(2x-1=123\)
\(\Rightarrow2x=124\)
\(\Rightarrow x=\frac{124}{2}=62\)
4. Tìm x biết :
a) (125 + x) + 68 = 236
(125 + x) = 236 - 68
(125 + x) = 168
x = 168-125
x= 43
b) 2x - 1= 123
tim x
123+x+2x=2x+345-236
1324+x+x=125-2x-3x
123+x+2x=2x+345-236
<=>x+2x-2x=345-236-123
<=>x=-14
vậy x=-14
1324+x+x=125-2x-3x
<=>x+x-2x-3x=125-1324
<=>-3x=-1199
<=>x=\(\frac{1999}{3}\)
vậy x=\(\frac{1999}{3}\)
k mk nha mấy bạn
\(123+x+2x=2x+345-236\)
\(\Leftrightarrow2x+345-236-2x-x=123\)
\(\Leftrightarrow109-x=123\)
\(\Leftrightarrow x=-14\)
123+236=?
2480-4710:3+[200-(x-5)]=1010
2480 - 4710 : 3 + ( 200 - ( x - 5 ) ) = 1010
2480 - 1570 + (200 - ( x - 5 ) ) = 1010
910 + 200 - ( x - 5 ) = 1010
1010 - ( x - 5 ) = 1010
x - 5 = 0
x = 5
Vậy x = 5
2480 -4710 : 3 + [ 200 - ( x -5 ) ] = 1010
2480 -4710 : 3 + [ 200 - ( x -5 ) ] = 1010
=> 2480-1570+[200-x+5]=1010
=> 910+200-x+5=1010
=> 1110-x+5=1010
=> 1115-x=1010
=> x=1115-1010
=> x=105
2480 - 4710 : 3 + [ 200 - ( x - 5 ) ] = 1010
2480 - 1570 + [ 200 - ( x - 5 ) ] = 1010
910 + [ 200 - ( x - 5 ) ] = 1010
[ 200 - ( x - 5 ) ] = 1010 - 910
[ 200 - ( x - 5 ) ] = 100
( x - 5 ) = 200 - 100
( x - 5 ) = 100
x = 100 + 5
=> x = 105
2480-4710:3+ơ200-(x-5)ư=1010
Giải giúp mình nha
123 x 4 =
197 x 7 =
236 x 8 =
387 x 6 =
ai nhanh nhất mình tick
492;1379;1888;2322
123x4=492
197x7=1379
236x8=1888
387x6=2382
Bai 1; 2480- 4710:3 +[200- ( x-5)] =1010