Question

даю 20б!
|3x-7|=5 решите уравнение

Answer 1

$|3x-7|=5$

$\left \{ {{3x-7=5} \atop {-3x+7=5}} \right.$

$\left \{ {{3x=12} \atop {-3x=-2}} \right.$

$\left \{ {{x=4} \atop {x=2/3}} \right.$

Answer 2

3х-7=5

3х-7=-5

х=4

$x = \frac{2}{3}$