Subtract 8 from each side: 3a = 33 Divide each side by 3: a = 11
28
14
Minus 8 plus 6 equals -2.
Commutative property of addition.
6a + 8 = 2(3a + 4)
Subtract 8 from each side: 3a = 33 Divide each side by 3: a = 11
12+1.5a = 3a 12 = 3a-1.5a 12 = 1.5a Divide both sides by 1.5 to find the value of a: a = 8
6 plus 7 plus 8 equals 6 plus 8 plus 7, what property is that?That is the associative property.
28
-3a-12 = 12+12 +12-3a = +12~ ~-3 -3a = -8
14
Minus 8 plus 6 equals -2.
Commutative property of addition.
89
6 plus 8 - one of the basic laws of arithmetic
commutative property of addition