Vocabulary
Am I an Expression or Equation?
x + 31y = 5
Equation
x/10 = 3
30
x = 5
3(x+2)
21
2x + 1 = 13
6
Am I an Expression or Equation?
16 - x
Expression
8x = 64
8
x = 10
4(2x + 5)
100
5x + 4 = 49
9
Another word for the lonely number in a math problem not attached to a variable.
Constant
Am I an Expression or Equation?
149 = 100 + 7x
Equation
x + 5 = 9
4
x = 0
28x + 21
21
80 = 17x + 29
3
Am I an Expression or Equation?
5(3-x) = 27
Equation
x - 8.7 = 10.2
18.9
x= -6
2(4x2 - 10)
268
54 = 13x - (-2)
4
The number in front of a variable
Coefficient
Am I an Expression or Equation?
14x + 2(x - 5) - 10
Expression
20.17 = x + 4.39
15.78
x= -5
8x - 40
-80
x/-2 + (-3) = 15
-36