=>5/42-x=11/13-15/28+11/13=22/13-15/28
=>x=5/42-22/13+15/28=-1193/1092
`11/13-(5/42-x)=15/28-11/13`
`11/13-(5/42-x)=-113/364`
`5/42-x=11/13+113/364`
`5/42-x=15/28`
`x=5/42-15/28`
`x=-5/12`
11/13 - (5/42 - x ) = - (15/28 - 11/13 )
11/13(5/42-x)=-(15/28-11/13)
\(\frac{11}{13}-(\frac{5}{42}-x)-(\frac{15}{28}-\frac{11}{13})\)
tìm x
a, 11/13 -( 5/42 - x) = - (15/28 - 11/13)
b, x +1/3 = 2/5-(-1/3)
c, 2/3 x +5/7 =3/10
d, 3/7-x = 1/4 - (-3/5)
e, -21/13 x + 1/3 = -2/3
\(\frac{11}{13}-\left(\frac{5}{42}-x\right)=-\left(\frac{5}{28}-\frac{11}{13}\right)\)
GIÚP MINK VS THANK NHÌU
TÌM X
A, 11/12-(5/42-X)=(15/28-11/12)
B,X+1/10+X+1/11+X+1/12=X+1/13+X+1/14
Tìm x biết :
\(\frac{11}{13}\)-(\(\frac{5}{42}\)-x)=-(\(\frac{15}{28}\)-\(\frac{11}{13}\))
Giúp Phát Nào
bài 2 . thực hiện phép tính
a. -1,75-(-1/9-2 1/18)
b. -1/12- (2 5/8-1/3)
c. -5/6-(-3/8+1/10)
Bài 3 :tìm x ,biết :
a. 11/13-(5/42-x)=(-15/28-11/13)
b. x+1/3=2/5-(-1/3)
c. 3/7-x=1/4-(-3/5)
1. Tìm x biết
a. 2x + 2x+3 = 144
b. (2x - 1)10 = (2x - 1)100
c. 11/13 - (5/42 - x) = -(15/28 - 11/13)
