Question

Помогите решить пример |5х+1|=3

Answer 1

$|5x + 1| = 3 \\ 5x + 1 = 3 \qquad5x + 1 = - 3 \\ 5x = 3 - 1 \qquad5x = - 3 - 1 \\ 5x = 2 \qquad5x = - 4 \\ x = 2 \div 5 \qquad x = - 4 \div 5 \\ \underline{x_{1} = 0.4} \qquad \underline{x_{2}= - 0.8}$