Question

4- Resolva as equações: a) 6x-4 = 2x + c) (4x+6)-2x = (x - 6) + 10 + 14 b) 4x − 1 = 3(x - 1).

Answer 1

Resposta:

Sempre lembre de isolar o x:

$a) 6x-4=2x\\\\6x-2x=4\\\\4x=4\\\\x= \frac{4}{4}\\\\x=1\\\\b)4x-1=3(x-1)\\\\4x-1=3x-3\\\\4x-3x=-3+1\\\\x = -2$

$c)(4x+6)-2x\\\\4x+6-2x\\\\2x+6\\\\2x=-6\\\\x= \frac {-6}{2} \\\\\\\x = -3$