Question

3× - 6 = 7,5 qual resultado ?​

Answer 1

Resposta:

4,5

Explicação passo-a-passo:

3x = 6+7,5

3x = 13,5

x = 13,5/3

x = 4,5

Answer 2

Resposta:

$3x-6=7,5\\\\\mathrm{Adicionar\:}6\mathrm{\:a\:ambos\:os\:lados}\\\\3x-6+6=7.5+6\\\\\mathrm{Simplificar}\\\\3x=13,5\\\\\mathrm{Dividir\:ambos\:os\:lados\:por\:}3\\\\\frac{3x}{3}=\frac{13,5}{3}\\\\\mathrm{Simplificar}\\\\x=4,5$