Question

(x-1)/4-3=0 me a judem

Answer 1

$\dfrac{x-1}{4} -3=0\\\\\\\dfrac{x-1}{4} - \dfrac{12}{4} =0\\\\\\\dfrac{x-1}{4} = \dfrac{12}{4}$

Multiplica cruzado..


$\dfrac{x-1}{4} = \dfrac{12}{4} \\\\\\4 \cdot (x-1)=12 \cdot 4\\\\4x-4=48\\\\4x=48+4\\\\4x=52\\\\\\x= \dfrac{52}{4} \\\\\\x=13$




Forte abraço!