Understanding Equations

What is the main purpose of an equation?

• To solve for a single variable

• To equate two expressions

• To compare two numbers

• To perform arithmetic operations

In the equation 3x = 6, what is the value of x?

• 3

• 2

• 1

• 4

If a + b = 10 and a is 6, what is the value of b?

• 4

• 3

• 2

• 5

In the equation 3c = 18, what does c equal?

• 4

• 5

• 6

• 7

What operation is necessary to equate x and y in a table using variables?

• Add x and y

• Subtract y from x

• Divide y by x

• Multiply x by a constant