Question

Neta*!  cine ma ajuta la o problema la matematica va primi 70 pucte ,  rezolvate + toate calculele facute + explicatie !!! urgent!!

1) Calculati x -y -z+t daca :
x=-3-(-4)+(-5)-(-6)-(+2)
y=-1 +(-4) -(-2)-(-4)+(-6)
z=-3+(-6)-3-5+(-6)-(-3)
t=-11+(-3)-(-6)+(-8)-(-2 ) 

Answer 1

$x=-3+4-5+6-2=0$

$y=-1-4+2+4-6=-5$

$z=-3-6-3-5-6+3=-20$

$t=-11-3+6-8+2=-14$

$x-y-z+t=0+5+20-14=11$