Question

how to solve a+b=1/5 and 2a+b/2=1/4​

Answer 1

Step by step process

$(a + b) = \frac{1}{5} \: \:.......(i) \: \: \: \\ a nd \: \\ 2a + \frac{b}{2} = \frac{1}{4} \\ \\ = > 4a + b = \frac{1}{2} ........(ii) \\ \\from \: equation \: (i)and \: (ii) \\ \\ - 3a = \frac{1}{5} - \frac{1}{2} \\ = > a = \frac{1}{10} \\ \\ and \\ \\ b = \frac{1}{5} - \frac{1}{10 } \\ = > b = \frac{1}{10}$