Question

Na incógnita x, resolva as equações literais:


a) 2x - 24a = 8x

b) 6 (a + 2x) - a = 5x - (a - x)​

Answer 1

Resposta:

a)

$2 x - 24a = 8x$

$2x - 24a - 8x = 0$

$- 6x - 24a = 0$

$- 6x = 24a$

$\frac{ - 6x}{ - 6} = \frac{24a}{ - 6}$

$x = \frac{24a}{ - 6}$

$x = - 4a$

b)

6(a+2x)−a=5x−(a−x)

6a+12x−a=5x−(a−x)

5a+12x=5x−(a−x)

5a+12x=5x−a+x

5a+12x=6x−a

5a+12x−6x=−a

5a+6x=−a

6x=−a−5a

6x=−6a

6/6x=−6/6a

x=−6/6a

×=-a