Vocabulary
What is an unknown amount usually represented by a number?
A.Variable
B. Constant
C. Term
A. Variable
Simplify:3x+4x
7x
Simplify: 3(2+x)
6+3x
Solve: x+5=12
x=7
Solve: x+4>10
x>6
What is a term with no variables?
A. Expression
B. Term
C. Constant
C. Constant
Simplify:5y+3+2y+6
7y+9
Simplify: 5(a+4)
5a+20
Solve: x-9= 15
x=24
Solve: 3x≤12
x≤4
What is a mathematical statement that has operations but does not use =, < , or >?
A. Equation
B. Expression
C. Term
B. Expression
Simplify:8a−3a+5b−2b
5a+3b
Simplify: 2(3x−5)
6x−10
Solve: 7x=35
x=5
Solve: x/2>10
x>20
What is a number in front of a variable called?
A. Coefficient
B. Term
C. Reciprocal
A. Coefficient
Simplify: 4m+3n−6+2m+8−n
6m+2n+2
Simplify: −4(2y+3)
−8y−12
Solve: x/4=8
x=32
Solve: −4𝑥≥8
x≤−2
What is a mathematical statement that sets two expressions equal to each other?
A. Reciprocal
B. Coefficient
C. Equation
C. Equation
Simplify: 7x−2y+4−3x+9y−10
4x+7y−6
Simplify: 6(2x−3)−4(x+5)
8x−38
Solve: -6x=30
x=-5
Solve: x−7<8
x<15