2.(\(\dfrac{x+3}{5}\)) = 5 - (\(\dfrac{13}{5}\) + x)
MSC = 5
2(\(\dfrac{x+3}{5}\)) = 5 - (\(\dfrac{13}{5}\)+x)
\(\Rightarrow\)\(\dfrac{2\left(x+3\right)}{5}\) = 5 - \(\dfrac{13+5x}{5}\)
\(\Rightarrow\) 2x + 6 = 5 - 13 - 5x
\(\Rightarrow\) 2x + 5x = 5 -13 -6
\(\Rightarrow\) 7x = -14
\(\Rightarrow\) x = -2
Vậy S =\(\left\{-2\right\}\)
2(x+3/5)=5-(13/5+x)
2(x+3/5)=5-(13/5+x)
2(x+3\5)=5-(13\5+x)
Giải các phương trình sau
A.5+3x=4x-9
B.3,2x-5(x-0,2)=5+0,2x
C.1,5-(x+2)=-3(x+0,1)
E.2/3-1/2(x+2)=-x+1
F.3t-4+13+2(t+2)-3t
14, giải các PT sau.
1, 4-(x-5)=5(x-3x)
2, 32-4(0,5y-5)=3y+2
3, 19-2(x+11)=5(2x-3)-4(5x-7)
4, 4(x+3)-7x+17=8(5x-1)+166
5, 17-14(x+1)=13-4(x+1)-5(x-3)
6, 5(x+10)2+2x=5x2-3
7, (2x-1)2+5=(2x+3)(2x-3)-x
8, 3(x-2)2+2(x+3)(x-3)=5(x+1)2
14, giải các PT sau.
1, 4-(x-5)=5(x-3x)
2, 32-4(0,5y-5)=3y+2
3, 19-2(x+11)=5(2x-3)-4(5x-7)
4, 4(x+3)-7x+17=8(5x-1)+166
5, 17-14(x+1)=13-4(x+1)-5(x-3)
6, 5(x+10)2+2x=5x2-3
7, (2x-1)2+5=(2x+3)(2x-3)-x
8, 3(x-2)2+2(x+3)(x-3)=5(x+1)2
a) \(\dfrac{x-3}{5}=6-\dfrac{1-2x}{3}\)
b) \(\dfrac{3x-2}{6}-5=\dfrac{3-2\left(x+7\right)}{4}\)
c) \(2\left(x+\dfrac{3}{5}\right)=5-\left(\dfrac{13}{5}+x\right)\)
d) \(\dfrac{7x}{8}-5\left(x-9\right)=\dfrac{20x+1,5}{6}\)