Question

desculpe-me o abuso é que eu sou estremamente ruim em mat (HELP cálculos ​

Answer 1

a)

$\frac{1}{x-3}+2=\frac{3}{x-3}\\\frac{1}{x-3}+\frac{2x-6}{x-3}=\frac{3}{x-3}\\\frac{2x-5}{x-3}=\frac{3}{x-3}\\(2x+5)\cdot (x-3)=(x-3)\cdot3\\2x+5=3\\2x=-2\\x=-1$

b)

$\frac{3}{2}-\frac{x+2}{3x}=-\frac{11}{6x}\\\frac{9x}{6x}-\frac{2x+4}{6x}=-\frac{11}{6x}\\\frac{9x}{6x}+\frac{-2x-4}{6x}=-\frac{11}{6x}\\\frac{7x-4}{6x}=-\frac{11}{6x}\\ (7x-4)\cdot6x=-11\cdot6x\\7x-4=6x\\x=4$