Question

Решите уравнения
1) 3-4x=4x-5
2) 4x+4=-6x-5
3) 3x+3=-2-7x
4)-1-8x=-10x+3
5)7-6x=-4x-6
6)2(x-7)=3
7) 5(x-9)=-2
8) 7(-3+2x)=-6x-1
9) 2(7+9x)=-6x+2
10) 4(2-3x)=-7x+10

Answer 1

1) 3-4x=4x-5
 -4х-4х = -5-3
-8х = -8
 х = 1
_____________
2) 4x+4=-6x-5
   4х+6х=-5-4
   10х= -9
  x = -0.9
_____________
3) 3x+3=-2-7x
  3x + 7x = -2 -3
  10x = - 5
  x = - 0.5
_____________
4)-1-8x=-10x+3
-8x+10x = 3+1
2x = 4
x = 2
______________
5)7-6x=-4x-6
-6x + 4x = -6-7
-2x = -13
x = 6.5
____________
6)2(x-7)=3
  2x - 14 = 3
  2x = 3+14
  2x = 17
  x = 8.5
______________
7) 5(x-9)=-2
   5x - 45 = -2
  5x = -2 + 45
 5x = 43
  x = 8.6
____________
8) 7(-3+2x)=-6x-1
 -21 + 14x = -6x - 1
 14x + 6x = -1+21
   20x = 20
 x = 1
______________
9) 2(7+9x)=-6x+2
14 + 18x = -6x + 2
 18x+6x = 2-14
  24x = -12
  x = -0.5
__________________
10) 4(2-3x)=-7x+10
 8 -12x =-7x + 10
 -12x + 7x = 10-8
 -5x = 2
x = -0.4 

Answer 2

Спасибо большое

Answer 3

Не за что