Exam 2: Linear Equations and Inequalities in One Variable

Write the statement in symbols, using x as the variable, and find the solution by guessing or by using trial and error. All solutions come from the list of integers between -12 and 12 inclusive. -When 7 is added to another number the result is 18.

Write a numerical expression for the phrase and simplify it. -The product of 2 and the difference between 5 and -6

Use the distributive property to rewrite the expression. Simplify if possible. --9( 3x) - 9( 9y)

Choose the one alternative that best completes the statement or answers the question. Find the sum. - +

Find the quotient. -- ÷ ( - )

Answer the question. -Choose the expression that is equivalent to the following:

Find the difference. - -

Provide an appropriate response. -The table shows the number of pupils per teacher in selected counties in a certain state. Which counties have a figure greater than 12.5?

Answer the question. -Is the following expression undefined?

Select the smaller of the two given numbers. --106, 12

Provide an appropriate response. -The product of three negative numbers is positive.

Choose the one alternative that best completes the statement or answers the question. -Given the problem 8 - [ 8 - (-9 - 16)], is the first step in solving to subtract -9 from -16?

Answer the question as instructed. -Using the rules for the order of operations, what should be done first when evaluating the expression

Give the numerical coefficient of the term. -R v

Decide whether the statement is an example of the commutative, associative, identity, inverse, or distributive property. -( 8 + 6) + 1 = ( 6 + 8) + 1

Choose the one alternative that best completes the statement or answers the question. -Which one of the following is an example of a pair of like terms?

Decide if the given number is a solution to the given equation. -9x² + 8 = 80;   4

Write a numerical expression for the phrase and simplify it. -9 less than the difference between 17 and -8

Find the product. -2( 53)(5)

Decide if the statement is true or false. --19 > -5