Question

Решите неравенство |5x+3|<7

Answer 1

$|5x+3| textless 7; ; Rightarrow ; ; ; -7 textless 5x+3 textless 7\\-7-3 textless 5x textless 7-3\\-10 textless 5x textless 4; |:5\\-2 textless x textless 0,8\\xin (-2;0,8)\\P.S.; ; |x| textless a; ; Rightarrow ; ; -a textless x textless a$