Question

resolva 3x-1/4 - 4x-1/3 = 0

Answer 1

Explicação passo-a-passo:

$\sf 3x-\dfrac{1}{4}-4x-\dfrac{1}{3}=0$

$\sf 4x-3x=-\dfrac{1}{4}-\dfrac{1}{3}$

$\sf x=\dfrac{-3-4}{12}$

$\sf x=\dfrac{-7}{12}$

$\\ \sf \dfrac{3x-1}{4}-\dfrac{4x-1}{3}=0$

$\sf 3\cdot(3x-1)-4\cdot(4x-1)=0$

$\sf 9x-3-16x+4=0$

$\sf 16x-9x=-3+4$

$\sf 7x=1$

$\sf x=\dfrac{1}{7}$