verbal expressions
10 less than 430
420
(2+6)+4=2+(6+4)
associate of addition
x-4=7
11
4x-2=8
x=2.5
4x+6-2x=6x-8-2
x=4
2 more than 68 minus 1
69
4+0=4
identity of addition
x+7=17
10
2x-8=10
x=9
6x-8-2=4x+6-2x
x=4
55 subtracted by 4
51
5(3x-7)
Distributive
x+20=51
31
5x+8=18
x=2
-3x-4(4x-8)=3(-8x-1)
x=-7
7 times 11
77
4*0=0
Zero of multiplication
100+x=400
300
6x+11=5
x=-1
-3x-32=-2(5-4x)
x=-2
9000 divivde by 1
4+5=9 5+4=9
Commutative Property
300+x=420
120
6+3x=9
x=1
-12x+4x-5-9=8x-13x+15-8
x=-7