Vocabulary
What is the opposite of addition?
Subtraction
b + 9 = 11
b=2
n/2 - 10 = -2
n = 16
2(n + 1) = 8
n = 3
0 + (-4) =
-4
What is the opposite of subtraction?
addition
8y = 56
y=7
-7z + 9 = 37
z = -4
4(x-1) = 12
x = 4
1 - 9 =
-8
Give an example of a "Variable"
x, y, a, m, n ....
m - 7 = -1
m = 6
6r - 10 = -46
r = -6
5(6 + k) = 50
k = 4
-40 x 9 =
-360
What is the opposite of division?
multiplication
b/4 = -10
b = -40
c/-3 + 5 = 12
c = -21
2(-4 + c) = 10
c= 9
-100/4
-25
What is the opposite of multiplication?
divsion
x + 0.5 = 10
x = 9.5
-9s - 12 = 51
s = -7
-2(4 + a) = 16
a = -12
-10 (3 + 9) =
-120