Question

15/20-(х+1/20)=4/20 пж помогите ​

Answer 1

$\frac{15}{20} -(x+\frac{1}{20} )=\frac{4}{20} \\\frac{15}{20} -x-\frac{1}{20} =\frac{4}{20}\\\frac{14}{20} -x=\frac{4}{20} \\-x=\frac{4}{20} -\frac{14}{20} \\-x=-\frac{10}{20} \\x=\frac{10}{20} =\frac{1}{2} =0.5$