2(x - 1) - 5(x + 2) = - 10
2x - 2 - 5x - 10 = - 10
2x - 5x = - 10 + 2 + 10
- 3x = 2
x = -2/3
2(x - 1) - 5(x + 2) = - 10
2x - 2 - 5x - 10 = - 10
2x - 5x = - 10 + 2 + 10
- 3x = 2
x = -2/3
Tìm x biết : a,( 2x-3 )-( x-5 )= ( x+2 )-( x-1 ) b,2 ( x-1 )-5 (x+2 )= -10
Tìm x, biết:
2(x - 1) - 5(x + 2) = -10
Tìm x biết:
a) ( 2x - 3) - (x - 5) = ( x +2 ) - ( x - 1)
b) 2(x - 1) - 5(x+2) = -10
tìm x biết 2(x-1)-5(x+2)=-10
Tìm x biết
a) (2x-3)-(x-5)=(x+2)-(x-1)
b) 2.(x-1)-5.(x+2)= -10
tìm x biết
(3-9/10-|x+2|):(19/10-1-2/5)+4/5=1
Tìm x, biết:
a) 3/(x+2)(x+5) + 5/(x+5)(x+10) + 7/ (x+10)(x+7) = x/(x+2)(x+17) với x thuộc {-2,-5,-10,-17}
b) 2/(x-1)(x-3 + 5/(x-3)(x-8) + 12/(x-8)(x-20) -1/x-20 =-3/4 với x thuộc {1,3,8,,20}
Tìm x, biết:
a) \(\dfrac{-1}{10}\) + \(\dfrac{2}{5}\)x + \(\dfrac{7}{20}\) = \(\dfrac{1}{10}\)
b) \(\dfrac{1}{3}\) + \(\dfrac{1}{2}\) : x= \(-\dfrac{1}{5}\)
c) \(-\dfrac{2}{3}\) : x + \(\dfrac{5}{8}\) = \(-\dfrac{7}{12}\)