Question

me ajudem pessoal, Não consigo fazer ​

Answer 1

Resposta:

1) $\frac{12+5x-12x}{20}=\frac{2x+2}{1}$

$-7x+12=40x+40\\47x=-28\\x=\frac{-28}{47}$

a)

$\frac{6x+4x-3x}{12}=14\\ 7x=168\\x=24$

b)

$\frac{8x+4x+6x}{8}=18\\ 18x=144\\x=8$

c)

$\frac{3x+2x}{6}=\frac{7+2x}{3}$

$\frac{5x}{6} = \frac{7+2x}{3}$

$15x=42+12x\\3x=42\\x=14$

d)

$\frac{3x-2-(4-2x)}{4}=\frac{6x-(7x-2)}{3}$

$\frac{3x-2-4+2x}{4}=\frac{6x-7x+2}{3}$

$\frac{5x-6}{4}=\frac{-x+2}{3}$

$15x-18=-4x+8\\19x=26\\x=\frac{26}{19}$