Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
a)5-(13-3x)=109-(32+109)
5-(13-3x)=-32
13-3x =37
3x =-24
3x =-6
a)5-(13-3x)=109-(32+109)
5-13+3x =109-32-109
-8+3x=-32
3x=-32-(-8)
3x=-24
x=-24:3
x=-8
b)|3x-6|+(x-22)=0
(3x-6)+(x-22)=0
3x-6+x-22=0
3x+x=0+6+22
4x=10
x=\(\dfrac{5}{2}\)
c)/7-2x/=-13-5.(-8)
|7-2x|=27
⇒7-2x=27 hoặc 7-2x=-27
x=-10 hoặc x=-17
\(\left[5^3.\left(3x+2\right)\right]:13=5^5:\left(13^5:13^4\right)\)
\(\left[5^3\left(3x+2\right)\right]:13=5^5:13\)
\(\left[5^3\left(3x+2\right)\right]:13=\frac{3125}{13}\)
\(\left[5^3\left(3x+2\right)\right]=3125\)
\(3x+2=3125:5^3\)
\(3x+2=25\)
\(3x=25-2\)
\(3x=23\)
\(x=\frac{23}{3}\)
\(5^3.\left(3x+2\right):13=5^5:\left(13^5:13^4\right)\)
\(5^3.\left(3x+2\right):13=3125:13\)
\(5^3.\left(3x+2\right):13=\frac{3125}{13}\)
125 . ( 3x + 2 ) : 13 =\(\frac{3125}{13}\)
125 . ( 3x + 2 ) =\(\frac{3125}{13}.\frac{13}{1}=3125\)
3x + 2 = 3125 : 125
3x + 2 = 25
3x = 25 -2
3x = 23
x = 23 : 3
x = \(\frac{23}{3}\)
\(5^3\left(3x+2\right)\div13=10^3\div\left(13^5\div13^4\right)\)
\(\Rightarrow125\left(3x+2\right)\div13=1000\div13\)
\(\Rightarrow125\left(3x+2\right)=1000\)
\(\Rightarrow3x+2=1000\div125\)
\(\Rightarrow3x+2=8\)
\(\Rightarrow3x=8-2\)
\(\Rightarrow3x=6\Rightarrow x=6\div3\Rightarrow x=2\)
Vậy : x = 2
\(\left[5^3\left(3x+2\right)\right]:13=5^5:\left(13^5:13^4\right)\)
\(\left[5^3\left(3x+2\right)\right]:13=5^5:13\)
\(5^3\left(3x+2\right)=5^5:13.13\)
\(5^3\left(3x+2\right)=5^5\)
\(3x+2=5^5:5^3\)
\(3x+2=25\)
\(3x=25-2\)
\(3x=23\)
\(\Rightarrow x=\frac{23}{3}\)
\(a,\frac{7}{3}x+5=\frac{9}{6}x-7\)
\(\frac{7}{3}x-\frac{9}{6}x=-7-5\)
\(\left(\frac{7}{3}-\frac{9}{6}\right).x=-12\)
\(\frac{5}{6}.x=-12\)
\(x=\left(-12\right):\frac{5}{6}\)
\(x=-\frac{72}{5}\)
\(b,3x+\frac{6}{4}=5-\frac{7x}{6}\)
\(3x+\frac{7x}{6}=5-\frac{6}{4}\)
\(\left(3+\frac{7}{6}\right).x=\frac{7}{2}\)
\(\frac{25}{6}.x=\frac{7}{2}\)
\(x=\frac{7}{2}:\frac{25}{6}\)
\(x=\frac{21}{25}\)
\(c,\frac{12}{5}x+6=\frac{17}{3}x+12\)
\(\frac{12}{5}x-\frac{17}{3}x=12-6\)
\(-\frac{49}{15}x=6\)
\(x=6:\left(-\frac{49}{15}\right)\)
\(x=-\frac{90}{49}\)
\(d,6\left(3x+7\right)=12\left(2x-4\right)\)
\(18x+42=24x-48\)
\(18x-24x=-48-42\)
\(-6x=-90\)
\(x=15\)
\(e,13\left(2x-9\right)=8\left(3x-13\right)\)
\(26x-117=24x-104\)
\(26x-24x=-104+117\)
\(2x=13\)
\(x=\frac{13}{2}\)
3x - 2x = 13 - 19
x = -6
Vậy x = -6
3x + 7 = 4 - 3x
3x + 3x = 7 - 4
6x = 3
x = 3 : 6
x = \(\frac{1}{2}\)
Vậy x = \(\frac{1}{2}\)
5 ( x + 1 ) -3 x = x + 9
5 . x + 5 . 1 - 3x = x + 9
5x + 5 - 3x = x + 9
5x - x - 3x + 5 = 9
4x - 3x = 9 - 5
x = 4
Vậy x = 4
A) 3x-2x=13-19
=>. x=-6
Vậy x=-6
b)3x+7=4-3x
=>3x+3x=4-7
=>. 6x=-3
=>. x=-3/6
Vậy x=-3/6
c)5(x+1)-3x=x+9
=>5x+5-3x=x+9
=>. 5x-3x-x=9-5
=>. x=4
Vậy x=4
Chúc bạn học tốt nhé!
a) 25 - 3x = 13
3x = 25 - 13
3x = 12
x = 12 : 3
x = 4
b) 13 + 3(130 - 3x) = 313
3(130 - 3x) = 313 - 13
3(130 - 3x) = 300
130 - 3x = 300 : 3
130 - 3x = 100
3x = 130 - 100
3x = 30
x = 30 : 3
x = 10
\(5^3.\left(3x+2\right):13=10^3:\left(13^5:13^4\right)\)
\(125.\left(3x+2\right):13=1000:13\)
\(125.\left(3x+2\right)=1000\)
\(3x+2=1000:125\)
\(3x+2=8\)
\(3x=6\)
\(x=2\)
Hok tốt nha^^
=>53.(3x+2):13=103: 13
=>53.(3x+2)=103
=>(3x+2)=53
=>3x+2=5
=>3x=3
=>x=3:3
=>x=1
(3x+13).23-24=22.3.23
(3x+13).23-24=276
(3x+13).23=292
3x+13=36,5
3x=23,5
x=7,8