Respostas
Resposta:
Explicação passo-a-passo:
1) 5x-40x = 62 + 8 -35x = 70 x = 70/-35 x = - 2
2)6x - x = 15 + 10 5x = 25 x = 25/ 5 ===> x = 5
3) -3x = -27 x(-1) 3x = 27 x = 27/3 =====> x = 9
4) -12x -20x = 58+8 -32x = 66 x(-1) 32x = -66 =====> x = -66/32 x = 2,0625
5) -5x - 10x = 29 + 6 -15x = 35 x(-1) 15x = -35 ====> x = -35/15 =====> x = -0,27083333...
6) 14x = 28 ===> x = 28/14 =====> x = 2