Basic Equations
3 x = 7 + 14
x = 7
25 = y + 20
y = 5
3a - 4 = - 13
a = -3
a – 6 = 4 , a = 10
true
A letter or symbol to represent an unknown number.
Variable
7 • 8 = x - 4
x = 60
14 = x + 1
x = 3
8g - 12 = 60
g = 9
8z = 48 , z = 7
Not true
A single number, variable, or number and variable
within an algebraic expression or equation.
Term
78 - 28 = 10 x
x = 5
2 = e - 9
e = 11
3e + 5 = -16
e = -7
24 / y = 4 , y = 8
Not true
Y=6
At least one number and variable with at least one
mathematical operation.
Expression
x + 12 = 9 • 3
x = 15
18 = c + 5
c = 13
2m - 9 = -13
m = -2
d/6=3 , d=18
True
A mathematical sign is located in the middle of two equations?
Equal
6 x = 25 + 20 + 9
x = 9
g - 21 = 6
g = 27
2 +r/-3 = 9
r = -21
x + x + 7 = 16 , x = 4
Not True
a statement that the values of two mathematical expressions are equal
Equation