Question

3x+9=-x+10

6x+9x-10x+8=0

4x+2=7x+5

(5)(2)(-2)+2x-1=0


x+5x+9=x+6

5x+6x-9x+x=15

x+9=20-7x

x-2=x-6-1

(2)(5)(3)=5x+9

2x+9x-2x-7x=1

Answer 1

3x+9=-x+10
3x + x = 10 - 9
x = 1/4
x= 0,25

6x+9x-10x+8=0
5x = -8
 x= -8/5
 x= -1,6

4x+2=7x+5
-5 + 2 =7x - 4x
-3= 3x
-1 = x

(5)(2)(-2)+2x-1=0
10 (-2) + 2x -1 = 0
-20 + -1 + 2x = 0
2x = 21
x= 21/2
x= 10,5

x+5x+9=x+6
6x - x = 6 - 9
5x = -3
x = -3/5
x = -0,6

5x+6x-9x+x=15
3x = 15
x=15/3
x= 5

x+9=20-7x
7x +x = 20 - 9
x=11/8
x= 1,375

ESTE NO TIENE SOLUCIÓN, PARECE MAL PLANTEADO:
x-2=x-6-1
x - x = -7 + 2
0x= -5 

(2)(5)(3)=5x+9
30= 5x + 9
21/5=x
4,2 = x

2x+9x-2x-7x=1
11x-9x= 1
2x= 1
x=1/2
x= 0,5