Question

Calcule o valor de x na equação :
X/3+4x=39


Determine o valor de 50+(3x-4)=2(3x-4)+26.

Answer 1

$\frac{x}{3} + 4x = 39 \\ \frac{x}{3} + \frac{4x}{1} = 39 \\ \frac{x + 12x}{3} = 39 \\ \frac{13x}{3} = 39 \\ 13x = 39 . 3 \\ 13x = 117 \\ x = \frac{117}{13} = 9$



$50+(3x-4)=2(3x-4)+26. \\ 50 + 3x - 4 = 6x - 8 + 26 \\ 3x + 50 - 4 = 6x - 8 + 26 \\ 3x + 46 = 6x + 18 \\ 3x - 6x = 18 - 46 \\ -3x = -28 \\ x = \frac{-28}{-3}$