Question

Sa se rezolve ecuatiile in multimea R
a) |x-1|=7
b) |2x-2013|=2011
c) 2|x+2|+x=4

Answer 1

a)|x-1|=7
X-1=7
X=7+1
X=8
b) |2x-2013|=2011
2x-2013=2011
2x=2013+2011
2x=4024
X=4024:2
X=2012

c) 2|x+2|+x=4
2x+2+x=4
Doar atat am putut sa te ajut!