49-3.(x+6)=13
49-3.(x+6)=13
49 - 3 . ( x + 6 ) = 13
3 . ( x + 6 ) = 49 - 13
3 . ( x + 6 ) = 36
x + 6 = 36 : 3
x + 6 = 12
x = 12 - 6
x = 6
49 - 3.( x + 6 ) = 13
3.( x + 6 ) = 36
x + 6 = 12
x = 6
Vậy x = 6
\(49-3.\left(x+6\right)=13 \)
\(=>49-3x-18=13\)
\(=>31-3x=13\)
\(=>3x=31-13\)
\(=>3x=18\)
\(=>x=6\)
Vậy x\(=6\)
Tìm x: 49 - 3 ( x + 6 ) = 13
49 - 3 ( x + 6 ) = 13
3 ( x + 6 ) = 49 - 13
3 ( x + 6 ) = 36
x + 6 = 36 : 3
x + 6 = 12
x = 12 - 6
x = 6
49-3(x+6)=13
3(x+6)=49-13
3(x+6)=36
x+6=36:3
x+6=12
x=12-6
x=6
Vậy x=6
3(x+6) = 49 -13 = 36
\(x+6=36:3=12\)
\(x=12-6\)
\(x=6\)
mấy hôm nayminhf sẽ trả lời nhiều nên các bn trên 11 điểm nhớ k mình nhiều nhé
Tìm x:
49 - 3 : (x + 6) = 13
49-3:(x+6)=13
3:(x+6) = 49-13=36
x+6 = 36:6=6
x=6-6=0
Vậy x=0
Chắc chắn 100% nhé!!!
Nhớ k cho mk đấy
49-3:(x+6)=13
3:(x+6) =49-13
3:(x+6) =36
x+6 =3:36
x+6 =\(\frac{1}{12}\)
X =1/12-6
X =\(-\frac{71}{12}\)
Tìm x biết :
49 - 3 (x + 6) = 13
49 - 3 ( X + 6 ) = 13
3 ( X + 6 ) = 49 - 13
3 ( X + 6 ) = 36
X + 6 = 36 : 3
X + 6 = 12
X = 12 - 6
X = 6
49 - 3 ( x + 6 ) = 13
\(49-3\left(x+6\right)=13\)
\(49-3x-18=13\)
\(3x=18\)
\(x=6\)
\(49-3\left(x+6\right)=13\)
\(3\left(x+6\right)=49-13\)
\(3\left(x+6\right)=36\)
\(x+6=36:3\)
\(x+6=12\)
\(x=6\)
49 - 3 (x + 6) = 13
<=> 3 (x + 6) = 49 - 13
<=> 3 (x + 6) = 36
<=> x + 6 = 36 : 3
<=> x + 6 = 12
<=> x = 12 - 6
<=> x = 6
vậy x = 6
tính nhanh : A, \(\dfrac{7,2:2\cdot28,6+1,43\cdot2\cdot64}{13+5+7+...+49-339}\)
tìm x : B, 2+( \(\dfrac{3}{2}\)+ x - \(\dfrac{5}{8}\) ) : \(\dfrac{13}{4}\)=6
a: Sửa đề; \(A=\dfrac{7.2:2\cdot28.6+1.43\cdot2\cdot64}{1+3+5+7+...+49-339}\)
\(=\dfrac{3.6\cdot28.6+2.86\cdot64}{1+3+5+...+49-339}\)
\(=\dfrac{2.86\left(64+36\right)}{25^2-339}=\dfrac{286}{286}=1\)
b: =>2(x+7/8)=6*13/4=78/4=39/2
=>x+7/8=39/4
=>x=71/8
-4(5-x)=-3(6-x)
-3(x-8)-(2x-7)=35
2. Tính tổng
1+(-2)+3+(-4)+...+49+(-50)
1-2+3-4+...+99-100
2-4+6-8+...+49-50
Tính hợp lý
24(16-5)-16(24-5)
29-(19-13)-19(29*13)
31*(-18)+31*(-81)-31
(-12)*47+(-12)*52+(-12)
13(23+22)-3(17+28)
2/3 + 3/4
9/4 + 3/5
5/24 + 1/4
3/15 - 5/35 18/27 - 2/6 37/12 - 3
11/9 x 3/22 7/13 x 13/7 4 x6/7
2/5 : 3/10 3/8 : 9/4 8/21 : 4/7
2/3 + 3/4=17/12
9/4 + 3/5=57/20
5/24 + 1/4=11/24
3/15 - 5/35=2/35 18/27 - 2/6=1/3 37/12 - 3=1/12
11/9 x 3/22=1/6 7/13 x 13/7=1 4 x6/7=24/7
2/5 : 3/10=4/3 3/8 : 9/4=1/6 8/21 : 4/7=2/3
2/3 + 3/4
= 17/12
9/4 + 3/5
= 57/20
5/24 + 1/4
=11/24
3/15 - 5/35
=2/35
18/27 - 2/6
=1/3
37/12 - 3
= 1/12
11/9 x 3/22
=1/6
7/13 x 13/7
=1
4 x6/7
=24/7
2/5 : 3/10
=4/3
3/8 : 9/4
=1/6
8/21 : 4/7
= 2/3
1=17/12
2=57/20
3=11/24
4=2/35 7=1/3 10=1/12
5=1/6 8=1 11=24/7
6=4/3 9=1/6 12=2/3
Tìm x thuộc Z, biết: 1. 2 |x - 1| - 5(x + 3) - 2(x-7) = |x - 1|- 7x 2. |x - 2| - 5(x - 4) =20 - 5x 3. 4(x - 2) - 3(x + 4 =(-4)(+3)(-125)(+25)(-8) 4. -3(2x - 4) + 7(x-5) = (-67)(1-301) - 301 . 67 5. 7(x - 5) - 4(x+3) = 2(x - 5)+ (13-135 + 49 ) - (13+49) 6. 5(x-3) - 2(x + 1)= 3 + 2(x-1)+(18 + 29) +( 185 - 18 - 29)