Question

Resolva as equações

A) |X-1|=2
4
B) 5+ |-2x+4|= 11

Answer 1

a)|x-1|=2
x-1=24
x=24+1
x=25

b)5+|-2x+4|=11
|-2x+4|=11-5
2x+4=6
2x=6-4
x=2÷2
x=1