Question

Despeje y valor de la x

5(2x-1)=15

3(4x-3)-60x=39

10(4x+7)=90

Answer 1

$5(2x-1)=15\\2x-1=\frac{15}{5}\\2x-1=3\\2x=3+1\\2x=4\\x=\frac{4}{2}\\x=2\\\\\\\\\\3(4x-3)-60x=39\\12x-9-60x=39\\-48x-9=39\\-48x=39+9\\x=\frac{48}{-48}}\\x=-1\\\\\\\\\\10(4x+7)=90\\4x+7=\frac{90}{10}\\4x+7=9\\4x=9-7\\4x=2\\x=\frac{2}{4}\\x=\frac{1}{2}$