Question

b) 4 + 6x = 5x + 6
c) 3x + 2x + 4 =-16 +7
d) 10x + 4 = 3x + 2x - 16
e) 9x + 10 + 3x = -14​

Answer 1

Resposta:

$b)4 + 6x = 5x + 6 \\ 6x - 5x = 6 - 4 \\ x = 2 \\ \\ c)3x + 2x + 4 = 16 + 7 \\ 3x + 2x = 16 + 7 - 4 \\ 5x = 19 \\ x = \frac{19}{5} \\ x = 3.8 \\ \\ d)10x + 4 = 3x + 2x - 16 \\ 10x - 3x - 2x = - 16 - 4 \\ 5x = - 20 \\ x = \frac{ - 20}{5} \\ x = - 4 \\ \\ e)9x + 10 + 3x = - 14 \\ 9x + 3x = - 14 - 10 \\ 10x = - 24 \\ x = \frac{ - 24}{10} \\ x = - 2.4$