Getallestelsels: HGV#1

Bepaal die antwoord van die volgende somme:

a)
$table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell open square brackets negative 2 plus left parenthesis negative 8 right parenthesis cross times left parenthesis negative 2 right parenthesis close square brackets divided by left parenthesis negative 7 right parenthesis end cell row blank equals cell open square brackets negative 2 plus open parentheses plus 16 close parentheses close square brackets divided by left parenthesis negative 7 right parenthesis end cell row blank equals cell open square brackets negative 2 plus 16 close square brackets divided by left parenthesis negative 7 right parenthesis end cell row blank equals cell open square brackets 14 close square brackets divided by left parenthesis negative 7 right parenthesis end cell row blank equals cell negative 2 end cell end table$

b)
$table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell open square brackets negative 2 plus left parenthesis negative 8 right parenthesis close square brackets cross times left parenthesis negative 2 right parenthesis divided by 5 end cell row blank equals cell open square brackets negative 2 minus 8 close square brackets cross times left parenthesis negative 2 right parenthesis divided by 5 end cell row blank equals cell open square brackets negative 10 close square brackets cross times left parenthesis negative 2 right parenthesis divided by 5 end cell row blank equals cell plus 20 divided by 5 end cell row blank equals 4 end table$

c)
$table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell open square brackets left parenthesis negative 3 right parenthesis plus left parenthesis negative 5 right parenthesis close square brackets cross times open square brackets 2 minus left parenthesis negative 2 right parenthesis close square brackets end cell row blank equals cell open square brackets negative 3 minus 5 close square brackets cross times open square brackets 2 plus 2 close square brackets end cell row blank equals cell open square brackets negative 8 close square brackets cross times open square brackets 4 close square brackets end cell row blank equals cell negative 32 end cell end table$

d)
$table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell left parenthesis negative 3 right parenthesis plus open square brackets left parenthesis negative 5 right parenthesis cross times 2 close square brackets minus left parenthesis negative 2 right parenthesis end cell row blank equals cell open parentheses negative 3 close parentheses plus open square brackets negative 10 close square brackets minus left parenthesis negative 2 right parenthesis end cell row blank equals cell negative 3 minus 10 plus 2 end cell row blank equals cell negative 11 end cell end table$

e)
$table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell space left parenthesis negative 3 right parenthesis plus left parenthesis negative 5 right parenthesis cross times open square brackets 2 minus left parenthesis negative 2 right parenthesis close square brackets end cell row blank equals cell left parenthesis negative 3 right parenthesis plus left parenthesis negative 5 right parenthesis cross times open square brackets 2 plus 2 close square brackets end cell row blank equals cell left parenthesis negative 3 right parenthesis plus left parenthesis negative 5 right parenthesis cross times open square brackets 4 close square brackets end cell row blank equals cell negative 3 minus 5 cross times 4 end cell row blank equals cell negative 3 minus 20 end cell row blank equals cell negative 23 end cell end table$