Question

alguém sabe a resposta?​

Answer 1

$\frac{x-5}{10}+\frac{1-2x}{5} =\frac{3-x}{4} \\ \\\frac{(x-5)+2(1-2x)}{10} = \frac{3-x}{4}\\\\\frac{x-4x+2-5}{10} = \frac{3-x}{4} \\\\\frac{-3x-3}{5} = \frac{3-x}{2} \\\\5(3-x) = 2(-3x-3)\\\\15 - 5x = -6x - 6\\\\-5x +6x = -6 -15\\x = -21$

23x-16 = 14 - 17x

23x+17x = 14+16

40x = 30

x = 3/4