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- 1. Multiple Choice
What is a variable?
It's a number equation.
A letter representing an unknown number in an equation.
The symbols in an equation that aren't letters or numbers.
Any equation with an equals sign.
- 2. Multiple Choice
In the equation 2x + 3y = 19, what is/are the variable(s)? Choose the best answer.
x
y
=
Both x and y are variables
- 3. Multiple Choice
What branch of mathematics deals with equations with variables?
Algebra
Geometry
Calculus
Physics
- 4. Multiple Choice
Which symbol is present in every equation?
x
+
-
=
- 5. Multiple Choice
How do we figure out the value of a variable?
Add up all the numbers in the equation.
Multiply the variable by itself.
Isolate the variable on one side of the equals sign.
A variable has no set value.
- 6. Multiple Choice
How would you solve the equation 4x = 100?
Divide 100 by 4
Subtract 4 from 100
Add 4 to 100
Multiply 100 by 4
- 7. Multiple Choice
In the equation 2x + 3y = 19, what is the constant?
y
19
x
2
- 8. Multiple Choice
Solve for x: 7x + 7 = 21
x = 7
x = 4
x = 3
x = 2
- 9. Multiple Choice
What is the first step in solving the equation 2y - 11 = 25
Subtract 11 from 25
Add 11 to 25
Divide 25 by 2
Multiply 25 by 2
- 10. Multiple Choice
Solve for k.... 31 - 3k = 10
k = 10
k = -10
k = -7
k = 7
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