Răspuns :
a) c(a + b) = 128 si c = - 32
- 32 (a + b) = 128
a + b = 128/ - 32
a + b = - 4
b) c(a + b) = - 96 si c = - 3
-3 (a + b) = -96
a + b = - 96/ - 3
a + b = 3
c) c (a + b) = - 882 si c = - 9
- 9 (a + b) = - 882
a + b = - 882/- 9
a + b = 98
- 32 (a + b) = 128
a + b = 128/ - 32
a + b = - 4
b) c(a + b) = - 96 si c = - 3
-3 (a + b) = -96
a + b = - 96/ - 3
a + b = 3
c) c (a + b) = - 882 si c = - 9
- 9 (a + b) = - 882
a + b = - 882/- 9
a + b = 98
a) a × c + b × c = 128 si c = -32
c(a + b) = 128
a + b = 128 / c
a + b = 128 / (-32) = -4
b) a × c + b × c = -96 si c = -3
c(a + b) = - 96
a + b = -96 / c
a + b = -96 / (-3) = 32
c) a × c + b × c = -882 si c = -9
c(a + b) = -882
a + b = -882 / c
a + b = -882 / (-9) = 98
c(a + b) = 128
a + b = 128 / c
a + b = 128 / (-32) = -4
b) a × c + b × c = -96 si c = -3
c(a + b) = - 96
a + b = -96 / c
a + b = -96 / (-3) = 32
c) a × c + b × c = -882 si c = -9
c(a + b) = -882
a + b = -882 / c
a + b = -882 / (-9) = 98