AlexandraBSponge

Alexandra Bertolet

September 18th :The difference between an Integer + a whole number is that, a whole number is a number o - infinity, integer are whole numbers and their opposites.

September 22nd : 4.78d+0d = (4.7+0)d = 4.78d         /          -21p-76p^2-9+p = -20p-76p^2-9         /          3.3t^2+8.7t-9.4t^2+5t = -6.1t^2+13.7t         /          1.5m - 4.2m - 12.5v +4.2m = 1.5m - 12.5v

September 25th : 1/9, -20, 5, 120, 1, -1.6, -s+t=8F, 8x-12, 49t

September 26th : Commutative property : Used in + and * no matter where they are in the problem the answer will always bee the same. Associative property : You can change the grouping.

October 1st : 14k^2-(-2k^2) = 16k^2        /      4xy+9xy = 13xy       /       6t+2-4t = 2t + 2    /    9x-4+3x = 12x-4     /   15/7 + -3/6 = 90/42 + -21/42 = 69/42 = 27/42

October 2nd : x = 19 ; 19-5=14   /    x + 3.8 = x = 5.2 ; 5.2+3.8=9   /   -7+x=7 ; x= 14 ; -7+14=7     /    x-13 = 20 ; x=33 ; 33-13=20     /    x/4 = 4*8=32 ; x=32 ; 32/4=8     /    9=3*x ; x= 3 ; 9=3*3         /       10x = 2 ; x=  1/5 ; 10*1/5 - 2      /   2/3x = -6 ; x + -9      /       x+2*3/4 = 6*1/2  ; x = 15/4

October 3rd : 8+c/-4 = -6 ; -4*-14 = c/-4*-4           /     7-3k=-14; k= 7 ; -3/k/-3=-2/-3      /     14=6-2p ;     p= -4        /              -y/2+14 = -1 ; -y =30 ; -y/x=15*-2=-10/-y

October 6th : 4x+3=-5 ; x = -2 ; 4*-2+3=-5 / -x+7=12 ; x=-5 ; -5+7=12 / 2t-8t+1=43 ; t=-7; 2*-7-8*7+1=43 / -7n+4-5n=0 ; n = 1/3; -7*1/3+4-5*1/3 / 1/5+3w/15 = 4/5 ; w=2