Question

5- Resolva as equações: A) 6x + 8 = 50 B) 4x - 5x + 2x = -- 15 C) 2x - 3x - 4 + 3 + 4x = 8 - 3​

Answer 1

Resposta:

a) 6x+8=50

<=> 6x=-8+50

<=> 6x=42

<=>x=7

b)4x-5x+2x=-15

<=> x=-15

c)2x-3x-4+3+4x=8-3

<=>2x-3x+4x=4-3+8-3

<=>3x=4

<=> x=4/3(4 sobre 3)