Review Solving One Step Equations and Inequalities

What is the first step in solving the equation?

• Add 4 to each side

• Subtract 4 from each side

• Subtract 2y from each side

• Divide each side by 2y

Solve for x:

• x = 20

• x = 7

• x = 10

• x = 3

Solve:
6x + 3 > 4x - 7

• x>5

• x>-5

• x<-5

• x>-2

16 - 4a > 8

• a<-2

• a>-2

• a<2

• a>2

• a = 3

• a = -3

• a = -4

• a = 4

Find the error in the problem below
19 - 2k = 3k - 1
     +3k   +3k
19 + 1k = -1
-19           -19
k = -20

• They should have divided by 1 for the last step

• They should add 19 instead of subtracting 19

• I can not find an error

• Instead of adding 3k they should subtract 3k

What is the first step in solving the following equation?
3x - 5 = 20

• multiply both sides by 5

• add 5 to both sides

• divide both sides by 5

• subtract both sides by 5

Which statement is true about how you would graph the inequality?

• Closed dot shade left

• Open dot shade right

• Closed dot shade right

• Open dot shade left

Find the error in the problem below 19 - 2k = 3k - 1 +3k +3k 19 + 1k = -1 -19 -19 k = -20

• They should have divided by 1 for the last step

• They should add 19 instead of subtracting 19

• I can not find an error

• Instead of adding 3k they should subtract 3k

Do I need to flip my sign?
-3x  ≥ 12

• Yes

• No