Respostas
Resposta:
a) 6x = 2x + 16 b)2x - 5 = x + 1 c) 2x + 3 = x + 4
6x - 2x = 16 2x - x = 1 + 5 2x - x = 4 - 3
4x = 16 x = 6 x = 1
x = 16/4
x = 4
d) 5x + 7 = 4x + 10 e) 4x - 10 = 2x + 2 f) 4x - 7 = 8x - 2
5x - 4x = 10 - 7 4x - 2x = 2 + 10 4x - 8x = - 2+ 7
x = 3 2x = 12 - 4x = 5
x = 12/2 x = 5/-4
x = 6
g) 2x + 1 = 4x - 7 h) 9x + 9 + 3x = 15 i) 16x - 1 = 12x + 3
2x - 4x = - 7 - 1 9x +3x = 15 - 9 16x - 12x = 3 + 1
- 2x = - 8 12x = 6 4x = 4
x = -8/-2 x = 6/12 x = 4/4
x = 4 x = 0,5 x = 1
j) 3x - 2 = 4x + 9
3x - 4x = 9 + 2
- x = 11
x = 11/-1
Explicação passo a passo: