Question

решите уравнение |х-3|=7

Answer 1

x-3=7; x=7+3; x=10
x-3=-7; x=-7+3; x=-4
x1=-4; x2=10

Answer 2

$|x-3|=7 \1)  left { {{x-3geq 0 } atop {x-3=7}} right. ; left { {{xgeq 3} atop {x=10}} right. \2) left { {{x-3< 0 } atop {-x+3=7}} right. ; left { {{x<3} atop {x=-4}} right.$

Ответ : x=10;-4