Subtraction
a - 3 = 5
a = 8
1 + n = 4
n = 3
2a = 6
a = 3
b/4 = 2
b = 8
What are the 4 operations in Math?
Addition, Subtraction, Multiplication, Division
20 = v - 6
v = 26
2 + y = 7
y = 5
28 = 7g
g = 4
30 = d/3
d = 90
What is the number called in 8g = 24?
coefficient
c - 2 =7
c = 9
30 = 20+ m
m = 10
3e = 36
e = 12
3 = e/9
e = 27
What are inverse operations?
The opposite operation
b - 4 = 15
b = 19
w + 4 = 10
w = 6
40 = 8j
j = 5
h/4 = 11
h = 44
What is the difference between an equation and an expression?
An equation has an equals sign, expressions do not.
12 = u - 1
u = 13
3 + x = 16
x = 13
9k = 81
k = 9
t/7 = 25
t = 175
How can you check your work after you solve a problem?
Perform the inverse operation