Vocabulary
A symbol that represents the unknown.
What is a Variable?
Combine like terms: -4x+8x
What is 4x
Solve for a: −3 + 5a = 4a − 10
What is a = −7
Solve for x: 4/3 = 8/x
What is x = 6?
The number in front of a variable.
Combine like terms: -7n+6-2n-8n
What is -9n-2
Solve for k:−2k = k − 7 − 8
Solve for n (decimal): 10/8=n/10`
What is n = 12.5
The number that tells the base number it sits above how many times to multiply by itself.
What is an exponent?
Distribute then combine like terms: 3n+3(1+8n)
What is 27n+3
Solve for r: 4r + 8 + 5 = −15 − 3r
What is r = -4
Solve for r (decimal): 4/9 = r-3/6
What is r = 5.67
Terms that you can combine together that have the same variable and/or power that they are raised to.
What is Like Terms?
Distribute then combine like terms: 8(r+1)
What is 8r+8
Solve for x: 64 ‒ x = 18 + 12x + 20
What is x = 2
Solve for b: 7/9 = b/b-10
What is b = -35
A combination of numbers, variables, and operators that represents a value.
What is an expression?
Distribute then combine like terms: -2(x-5)-2(7-2x)
What is 2x-4
Solve for y: 211 ‒ y + 36 = 19 + 12y + 7
What is y = 17
Solve for k (decimal): 5/k-9 = 8/k+5
What is k = 32.33