`240-[13+(23+25.5-x)]=130`
240 - [ 23 + ( 13 + 14 . 3 - x ) ] = 132
240 - [ 23 + ( 13 + 14 . 3 - x ) ] = 132
23 + ( 13 + 14 . 3 - x ) = 240 - 132
23 + ( 13 + 14 . 3 - x ) = 108
13 + 42 - x = 108 - 23
55 - x = 85
x = 85 - 55
x = 30
Có bao nhiêu giá trị của x thỏa mãn 240−[23+(13+24.3−x)]=132?
A. 3
B. 2
C. 1
D. 4
a.x - 8 : 4 - (46 - 23 .2 + 6 . 3) = 0
b. 240 - (23 + (13+24.3-x)) = 132
240 - dong ngoac vuong 23 + ( 13 + 24 .3 - x)dong ngoac vuong =132.
240 - [ 23 + ( 13 + 24 . 3 - x ) ] = 132
240 - [ 23 + 13 + 72 - x ] = 132
240 - 23 - 13 - 72 + x = 132
132 + x = 132
x = 132 - 132
x = 0
Vậy x = 0
=))
\(240-\left[23+\left(13+24.3-x\right)\right]=132\)
\(23+\left(13+24.3-x\right)=240-132\)
\(23+\left(13+24.3-x\right)=108\)
\(13+24.3-x=108-23\)
\(13+24.3-x=85\)
\(24.3-x=85-13\)
\(24.3-x=72\)
\(72-x=72\)
\(x=72-72\)
\(x=0\)
tìm x
x-8:4-(46-23.2+6.3)=0
240-[23+(13+24.3-x)]=132
(19x+2.5^2):14=(13-8)^2-4^2
(x+3)+3(x+1)=39
240-[23+(13+24.3-x)]=132
240-[23+(13+168-x)]=132
240-[23+(181-x)]=132
|
x-8:4-(46-23.2+6.3)=0
\(x-8:4-\left(46-23.2+6.3\right)=0\)
\(x-2-\left(46-46+18\right)=0\)
\(x-2-18=0\)
\(x-2=0+18\)
\(x-2=18\)
\(x=18+2\)
\(x=20\)
\(240-\left[23+\left(13+24.3-x\right)\right]=132\)
\(240\left[23+\left(13+82-x\right)\right]=132\)
\(23+\left(95-x\right)=132:240\)
\(23+\left(95-x\right)=\frac{132}{240}=\frac{11}{30}\)
\(23+\left(95-x\right)=\frac{11}{30}\)
\(95-x=\frac{11}{30}-23\)
\(95-x=\frac{11}{30}-\frac{690}{30}\)
\(95-x=-\frac{679}{30}\)
\(x=95+\frac{679}{30}\)
\(x=\frac{2850}{30}+\frac{679}{30}\)
\(x=\frac{3529}{30}=\)tự rút gọn ( nếu có thể )
15x27x3x15x17
55-5x(20+11)
37x(29-23)-29x(37-23
31x(17-130-31x(17+13)
a.-|-13|+(23)
b.80-[130-(12-4)2
c.23-(12-42)+|15|
\(a,-\left|-13\right|+23=-13+23=10\)
b, \(80-\left[130-\left(12-4\right)^2\right]\)
\(=80-\left[130-8^2\right]\)
= \(80-66=14\)
c, \(23-\left(12-4\right)^2+\left|15\right|\)
= \(23-8^2+15\)
= \(23-64+15=-26\)
240-[ 23 + ( 13 + 14.3 - x) ]=132
[ (46 - 32)^ 2 - ( 54 - 4 .2) ^2 . x - 1872 = 0
Giải giúp mình vs bn nào giải họ mình mình like bn đó cảm ơn nhiều
tìm x
a.15x-8mux99:29=194
b.(x:23+45).67=8911
c.(x-130):7=3mũ4-2mũ3.3
d.5mũx-5-3mũ2=2mũ4(8 mũ9.8 mũ 10-8mux 6.8 mũ 13)
e. (3x-2 mũ 4).7 mũ 3=2.74
tìm x biết 130:x +19 =23
130:x=23-19
130:x=4
x=130:4
x=32,5
tích đúng giup mk nha thanks
130 : x + 19 = 23
130 : x = 23 - 19
130 : x = 4
x = 130 : 4
x = 32,5
130 : x + 19 =23
130 : x =23 - 19
130 : x =4
x =130 : 4
x =32,5