PA Chapter 4.6

Question 1

Six more than twice a number is -20

Answer 1

6+2x= -20

Question 2

Eighteen is six less than 4 times a number

Answer 2

18= 4n-6

Question 3

Mary and Jane’s lunch cost a total of $22. Mary’s lunch cost $5 more than Jane’s. How much did each spend?

Answer 3

J+J+5 =22
   2J+5=22
       -5  -5
\_\_\_\_\_\_\_\_\_\_\_\_\_
  2J=17
  \_\_  \_\_
   2   2
  J= 8.50

Jane spent $8.50
Mary spent $13.50