Question

Ayuda!!
a) −8x − 6 + x + 8 = −31 + 3x − 7

b) −60 + 4 = 7. ( x− 4)

Answer 1

Respuesta:

a)

$- 8x - 6 + x + 8 = - 31 + 3x - 7 \\ - 6 + 8 + 31 + 7 = 3x + 8x - x \\ 40 = 10x \\ x = \frac{40}{10} \\ x = 4$

b)

$−60 + 4 = 7( x− 4) \\ - 60 + 4 = 7x - 28 \\ - 60 + 4 + 28 = 7x \\ - 28 = 7x \\ x = \frac{ - 28}{7} \\ x = - 4$