Equations

Which statement can be represented by the equation 2x + 3 = -5 ?

• Three more than the product of a number and two is negative five.

• Two increased by three times a number equals the opposite of five.

• The opposite of five is equal to the difference of two times a number and three.

• The sum of twice a number and three is negative five.

Which mathematical statement represents “four less than the quotient of a number and three is eleven and two tenths”?

• x = 1

• x = 2

• x = -1

• x = -2

• Lisa

• Madeline

• Ross

More than one answer may apply.

Which of the following equations have a solution of 10? 

The cost of pizza delivery (c) can be found by using the equation c = 8p + 7, where p represents the number of pizzas ordered and $7 represents the delivery charge. If the total cost for a pizza order is $39, how many pizzas were ordered?

• 2

• 4

• 8

• 9

• -6

• 6

• 7

• -7

• m = -3

• m = 3 

• m = 5.56

• m = -4