Math Words
An unknown number represented by a letter is called this...
Variable
Is x=4 a solution to 3x+6=18
Yes it is a solution
6x – 13 = 11
x= 4
4x + 2x = 36
x =6
How many solutions?
4x+7=4x+10
No Solutions
A number that stands by itself is called this...
Constant
Is x=2 a solution to 9x-5=-13
No it is not a solution.
4(3x+5)=10x+2
x=-9
4x + x + 1 = 31
x = 6
How many Solutions?
5x-6=5x-6
Infinite Solutions
A number attached to a variable is called...
Coefficient
Is x=-5 a solution to -5x+3=28
Yes, it is a solution.
4x+8-10x=4x-2
x=1
2x - 3x +1 = 11
x = -10
How many Solutions?
5x-3x+7=2x+7
Infinite Solutions
A mathematical phrase that includes numbers, variables, and operations.
Expression
Is x=9 a solution to 8x+2=8x+10
No, it is not a solution.
(x/2)-4=10
x= 28
3x - 5x + 7 = -11 + 7x
x = 2
How many Solutions?
8(x-5)=8x+40
No solution
A combination of constants and variables separated by a plus or minus sign...
Term
is x=17 a solution to the equation 2x-12=x+5
Yes, it is a solution.
7(x-3)+4x=5(2x+9)
x= 66
10x +70x + 10x + 10x = 600 - 60x - 40x
x = 3
How Many Solutions?
10-5(x+4)=-5x-20
No solution