Question

Пожалуйста помогите решить задания

Answer 1

$1)\frac{p+10}{7}=4\\\\\frac{p+10}{7}*7=4*7\\\\p+10=28\\\\p=18$

$2)\frac{8t+19}{8t+1}=\frac{8t-1}{8t}\\\\\frac{8t+19}{8t+1}-\frac{8t-1}{8t}=0\\\\\frac{8t*(8t+19)-(8t+1)(8t-1)}{8t(8t+1)}=0\\\\\frac{64t^{2}+152t-64t^{2}+1}{8t(8t+1)}=0\\\\\frac{152t+1}{8t(8t+1)}=0\\\\t\neq0;t\neq -\frac{1}{8} \\\\152t+1=0\\\\152t=-1\\\\t=-\frac{1}{152}$