Question

3-. Resolva a equação |4x – 6 |= |3x + 2| * 5 pontos S = {8 , 4/7} S = {-8 , 4/7} S = {-6 , 4/7} S = {6 , 7} Outro:

Answer 1

Resposta:

S = {8 , 4/7}

Explicação passo-a-passo:

$|4x-6|=|3x+2|\\ \\ 4x-6=+(3x+2)~~~~ou~~~~~4x-6=-(3x+2)\\ \\ ~logo\\ \\ 4x-6=+(3x+2)\\ 4x-6=3x+2\\ 4x-3x=2+6\\ x=8\\ \\ 4x-6=-(3x+2)\\ 4x-6=-3x-2\\ 4x+3x=-2+6\\ 7x=4\\ \\ x={4\over7}$