Question

1) -x+5=-3x+2
2)3-5x=10
3) x+2x+3-5x=4x-9
4) 18-x-2x=18-5x
Alguém por favor é pra amanhã,_,

Answer 1

1)
-x+5= - 3x+2
-x+ 3x = 2 - 5
2x = - 3
x= -3/2



2)
3-5x=10
-5x=10-3
-5x=7 .(1)
5x= -7
x= -7/5



3)
x+2x+3-5x=4x-9
3x - 5x - 4x= -9 -3
-2x - 4x = - 12
- 6x = -12 .(-1)
6x = 12
x=12/6
x= 2






4)
18-x-2x=18-5x
-x -2x + 5x = 18 - 18
- 3x + 5x = 0
2x = 0
x= 0/2
x= 0