\(4-3x=2x-6\)
\(-3x-2x=-6-4\)
\(-5x=-10\)
\(x=-10:\left(-5\right)\)
\(x=2\)
4 - 3x = 2x - 6
\(\Rightarrow\) ( -3x ) - 2x = ( - 6 ) - 4
\(\Rightarrow\) -5x = - 10
\(\Rightarrow\) x = ( - 10 ) : ( - 5 )
\(\Rightarrow\) x = 10 : 5
\(\Rightarrow\) x = 2
\(4-3x=2x-6\)
\(-3x-2x=-6-4\)
\(-5x=-10\)
\(x=-10:\left(-5\right)\)
\(x=2\)
4 - 3x = 2x - 6
\(\Rightarrow\) ( -3x ) - 2x = ( - 6 ) - 4
\(\Rightarrow\) -5x = - 10
\(\Rightarrow\) x = ( - 10 ) : ( - 5 )
\(\Rightarrow\) x = 10 : 5
\(\Rightarrow\) x = 2
rut gon
a,3x(2x-7)-3x(4x-5)
b,(-7x+8)(-2x+3)-7x(2x-4)
c,(2x-3)(3x2-2x+4)-(2x-3)(3x+4)
d,(-2+7)(3x-6)-(4x-5)(2x-6)
tim x
-2x(6x-2)+3x(4x-7)=8
(7x-2)(2x+3)-(3x-5)(4x+6)=2x2-5
+(-2x+3)-6x(3x-4)=-22x2+7x
1)6x-8=3x+1
2)12-10x=25-30x
3)3(2x+3)-2(4x-5)=10x+21
4)5(5x-3)-3(2x-4)11-5x
5)4(2-3x)-5(1-2x)=4-6x
6)8(4x-3)-3(2-3x)=13-40x
7)10x-5(1-4x)=5x-11
8)-3(3-4x)-5(4-3x)=12x-50
9)-2(20x-3)-3(4x-5)=9-2(2x-3)
10)-5(2-3x)+3(5-2x)=3x+3(3-5x)
1) 4x-(2x-5)=21
2) 14x+5=8x+10
3) 15+5x=3x+30
4) 2x-5=15-3x
5) 2(3x+5)+3(x+1)=6x+20
6) 4(x-3)+5(x-3)=18
Bài 13: Tìm x:
1/ (2x – 15) + 17 = 6
2/ 15 – (4 – 3x) = - 4
3/ - 21 + 3(-x + 7) = -18
4/ 78 : (3x – 2) = -3
5/ -35 : 5.(-3 – 2x) = 35
1. 6 X mũ 3 -8 =40
2. 4 X mũ 5 +15=47
3. 2 X mũ 3-4=12
4. 5 X mũ 3-5=0
5. (X -5) mũ 2016 = (X-5) mũ 2018
6. (3X -2) mũ 20= (3X-1) mũ 20
7. (3X -1) mũ 10 = (3X-1) mũ 20
8. (2X -1) mũ 50 = 2X-1
9. (X phần 3 -5) mũ 2000= ( X phần 3-5) mũ 2008
tim x
-(4x-1)-(5x+1)-(1-3x)=4.(2x-1)+6
Đề bài : Tìm các số tự nhiên x
1 , \(\dfrac{2x+5}{x+1}\) 4 , \(\dfrac{3x+5}{x-1}\)
2 , \(\dfrac{2x+4}{x}\) 5 , \(\dfrac{3x+6}{x-1}\)
3 , \(\dfrac{2x+7}{x+1}\)
Bài 1: Tìm x biết
a) 2x-35=15
b) 3x+17=2
c) 10-x=-25
d) (2x-3)×(6-2x)=0
e) x+1 phần 2 =0
f) 4 phần 7 + x = 3 phần 2