1. Warm Up
Check the solution to these problems; are they correct? If not, correct them.
3 – x = -17; x = -20
x/5 = 6; x = 30

2. Whiteboard Activity
One Step Equations

3. X – 2.3 = 4.7
X = 7

4. X + 8 = 14.1
X = 6.1

5. X / 1.2 = =7
X= -8.4

6. X = 0.7
X = -3.2

7. -6.3x = -8.19
X = 1.3

8. = x
X = 21.3

9. X – 25.4 = -44.8
X = 19.4

10. 28.8 = 18x
X = 1.6

11. X – 18 = -36.6
X = -18.6

12. x
X = 15.2

13. Translate each verbal expression into an algebraic expression, then solve

14. the sum of a number and 2.62 is 6.37
X = 6.37
X = 3.75

15. ¾ of a number is 9
3/4x = 9
X = 12

16. the quotient of some number and -1.8 is 7.2
x/-1.8 = 7.2
X =

17. the difference of a number and 2.4 is equal to -1.2
X – 2.4 = -1.2
X = 1.2

18. a number squared is 225.
X2 = 225
X = 15