Question

resolva as equações de 1 grau a) x/3+x/3-x/4= 14
b) x + x/2+3x/4= 18
c)x/2 + x/3= 7+2x/3
com explicaçao pf​

Answer 1

Resposta:

$a) \frac{x}{3} + \frac{x}{3} - \frac{x}{4} = 12 \\ \frac{4x + 4x - 3x = 144}{12} \\ 5x = 144 \\ x = \frac{144}{5} \\b) \frac{4x + 2x + 3x = 72}{4} \\ 9x = 72 \\ x = 8 \\ c) \frac{3x + 2x = 42 + 4x}{6} \\ 5x - 4x = 42 \\ x = 42$