Question

Rozwiaz rownania i nierownosci:

a)||x|+1|=7

b) |3-|2y + 1|| = 15

c)||z|+1|<6

d)|2-|t- 1||>10

Answer 1

a) x=6

c) z>5

b) y= -6.5

d ?

Answer 2

a) |x+1|=7    bo |x|=x
b)|3-2y+1|=15
c)|z+1|<6
d)|2-t-1|>10