Question

Por favor me ajudem, tarefa pra amanhã!
A) (3x-4)+(-2x+11)=0
B) (3x-4)-(-2x+11)=0
C) 5x-8-(3x+9)= -(x+2)
D) 8+(x-3)=6-(x+8)

Answer 1

A) (3x - 4) + (-2x + 11) = 0
3x - 4- 2x + 11 = 0
x = - 11 + 4
x = -7

B) (3x - 4) - (-2x + 11) = 0
3x - 4 + 2x - 11 = 0
5x = 11 + 4
5x = 15
x = 15/5 = 3

C) 5x - 8- (3x + 9) = - (x + 2)
5x - 8- 3x - 9 = - x - 2
5x - 3x + x = - 2 + 8 + 9
3x = 15
x = 15/3 = 5

D) 8 + (x - 3) = 6- (x + 8)
8 + x - 3 = 6- x - 8
x + x = 6- 8- 8
2x = -10
x = -10/2 = -5