Question

Daca m+n+p=2014 , m+n=1990 ,Calculeaza : a)m+n-p , b) m+n+2015 , c) m+n-p+34 clasa a 4a

Answer 1

(m+n+p)-(m+n)=p
2014-1990=24(p)
a)m+n-p=1990-24=1966
b)m+n+2015=1990+2015=4005
c)m+n-p+34=1966+34=2000

Answer 2

inlocuieste
a) 1990 + p = 2014 | -1990
p=24

b)1990 + 2015 =4005
c)1990-24+34=2000