Các câu hỏi tương tự
Tìm x biết:
a)(2x-3)-(x-5)=(x+7)-(x+2)
b)(7x-5)-(6x+4)+(2x+3)-(2x+1)
c)(9x-3)-(8x+5)=(3x+2)
d)(x+7)-(2x+3)=(3x+5)-(2x+4)
1,x=3x2
2,(x+5)(x-3)-(x-30)=0
3,(2x-6)(x+4)+2(2x-6)=0
4,(2x-5)(x+9)+6x-15=0
3,(2x-5)(x+6)+8x-20=0
tìm x biết:
a) 2(x-3)+5(x+4)=49
b) (2x-1)3 .251003=52 .52007
c) 3.(2x-1)3-5=76
d) 2(x+1)-(x+3)=2
1/ Tìm số tự nhiên x biết :
a/ 437 + ( 248 - x ) = 635
b/ 5. ( x + 27 ) = 465
c/ 3. ( x + 3 ) = 30
d/ 8x - 9 = 31
e/ 7 . x - \(3^2\)= 26
g/ 76 - 3 . ( x + 5 ) = \(4^5\): \(4^3\)
Tìm x biết :
a, ( 3x + 2016 ) - ( 2x - 15 ) = 2016
b, - 2(x + 41 ) - (8x - 82 ) = 3 - 9x
c, ( 4x - 1) - (52 + 3x) = 2x - 41
d, - ( 3x + 217 ) - ( 4x - 217) + 5 = 3 - 8x
tìm x
a, | 5/4x - 7/2 | - | 5/8x + 3/5 | = 0
b, 21/5 + 3 : | x/4 - 2/3 | = 6
c,| 9 + x | = 2x
d, | 2x - 3 | + x = 21
e, | 7 - 2x | + 7 = 2x
f, | -x + 2/5 | + 1/2 = 3,5
G, | 3x - 4 | + 4 = 3x
-8x(x-5)+(2x^2-8x)
Bài 1 . 2x+5-3( 3x+7)=6( 1-x )+8x
a) 3 - 2 ( x - 3 ) = 3x + ( - 5 )
b) - 6 - ( 7 + x ) = - 2 - 5 - 2x
c) 8x - 7 = - 13 + 7x
d) - 6 ( x - 2 ) + 5x = 13 - 2x
e) - 5 - 6x = x - 5x + 3