LIKE TERMS
ORDERED PAIRS
Solve for x
Find the missing variable
100
combine like terms: 6a + 4a + 4b + 7
10a +4b+ 7
100
In an ordered pair, which number equals x and which number equals y?
x is the first number in the pair; y is the second number.
100

x - 9 = 2

11

100

5y + 2m = 10a If you know the value of a is -2 and you know the value of y is 4. What is the value of m?

m = -20

200
Combine like terms: k + 3n - 2n + 4k
5k + n
200
For x = y/4 is (4,16) an ordered pair?
Yes
200

5 + 3x = 20

x = 5

200

a² + b² = c² If you know that a is 3 and b is 4 then what is the value of c?

c = 5

300
Combine like terms: 4(y + 9) - 3y
y - 36
300
For y = 5 + 3x is (3,7) an ordered pair?
No
300

4x + 7 = 3

x = -1

300

9x - 3y = 6n If you know that x is 4 and y is -4 what is the value of n?

n = 8
400
Combine like terms and solve for x: x + 3x = 48
x = 12
400
For y = 3x, when x =4, what is the ordered pair?
(4, 12)
400

12x - 9 = 3x

x = 1

400

What is a variable?

A variable is a letter that substitutes an unknown value.

500
Solve this expression: 14a + 4b + 7
Can't be solved; not an equation, and already in simplest terms
500
For x= y/2.5, when x =10, what is the ordered pair?
(10, 25)
500

8x - 12x + 30 = 40

x = -2.5

500

14c - 3x = 5n If you know that c is 3 and n is 6

x = 4