B=5 + 6x= 5x + 2
D=- 3x + 10 = 2x + 8 + 1
E=5x - 5 + x = 9 +x
F=7x - 4 - x = -2x + 8 -3x
G=- x - 5 + 4x =-7 + 6x +15
Soluções para a tarefa
B=5 + 6x= 5x + 2
6x - 5x = 2 - 5
x = - 3
------------------------------------------------
D=- 3x + 10 = 2x + 8 + 1
- 3x - 2x = 8 + 1 - 10
- 5x = - 1 (-1)
x = 1/5
----------------------------------------------------
E=5x - 5 + x = 9 +x
5x + x - x = 9 + 5
5x = 14
x = 14/5
----------------------------------------------------------------
F=7x - 4 - x = -2x + 8 -3x
7x - x + 2x + 3x = 8 + 4
11x = 12
x = 12/11
---------------------------------------------------------------
G=- x - 5 + 4x =-7 + 6x +15
- x + 4x - 6x = - 7 + 15 + 5
- 3x = 13
-x = 13/3 (-1)
x = - 13/3
Bons estudos