Question

Calcule o valor de x cada item​

Answer 1

Resposta: Segue os anexos

Answer 2

Resposta:

a) x = 2

b) x = 3

Explicação passo a passo:

$a)\frac{3}{4} =\frac{x+\frac{5}{2} }{6}\\\\4(x+\frac{5}{2})=3.6 \\\\4x +\frac{20}{2}=18\\\\4x+10=18\\\\4x=18-10\\\\4x=8\\\\x=\frac{8}{4}\\\\x=2$

$b)\frac{2x}{x-1}=\frac{9}{3} \\\\\frac{2x}{x-1} =3\\\\3(x-1)=2x.1\\\\3x-3=2x\\\\3x-2x\x=3\\\\x=3$