Unit 3 Assessment

Front

Solve for x: 3x - 5 = 16

Back

x = 7

Front

What is a variable in mathematics?

Back

A symbol used to represent an unknown value.

Front

Solve for d: -7(6 + d) = 49

Back

d = -13

Front

What is an independent variable?

Back

A variable that is manipulated to observe its effect on a dependent variable.

Front

Solve for c: 12 = 2c - 4

Back

c = 8

Front

What is a dependent variable?

Back

A variable that depends on the value of another variable.

Front

Solve for k: 7h - 2z = k when h = 2 and z = 3

Back

k = 14 - 6 = 8

Front

What does it mean to solve an equation?

Back

To find the value of the variable that makes the equation true.

Front

Solve for x: 5x + 3 = 18

Back

x = 3

Front

What is the purpose of an equation?

Back

To show the relationship between different quantities.