Pre Algebra Solving Two Step Equations

Solve for a

• a= -2

• a= -7.5

• a= 2

• a= 6

Tags

CCSS.7.EE.B.4A

Solve for a

• a= 9

• a= -9

• a= -5

• a= 5

Tags

CCSS.7.EE.B.4A

The objective when solving an equation is to....

• isolate the variable.

• check the solution.

• guess and check.

• hope you get the right answer.

Tags

CCSS.7.EE.B.4A

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

Tags

CCSS.7.EE.B.4A

Solve the two step equation above.

(type your whole solution with the variable and the equal sign)

Mathematical Equivalence

ON

Tags

CCSS.7.EE.B.4A

How would you solve each equation?

• divide both sides of = by 4

• x+4=12

• multiply both sides of = by 4

• 4x=12

• subtract 4 from both sides of =

• add 4 to both sides of =

• x-4=12

Tags

CCSS.6.EE.B.7

What is the last step you should do to solve this equation?

• Add 6 to both sides

• Divide both sides by -6

• Divide both sides by 36

• Multiply both sides by -6

Tags

CCSS.6.EE.B.7

Solve the two step equation above.

(type your whole solution with the variable and the equal sign)

Mathematical Equivalence

ON

Tags

CCSS.7.EE.B.4A

What is the first step to solve this equation:
11 - 3x = 44

• Add 3 to both sides

• Subtract 11 from both sides

• Add 11 to both sides

• Divide 3 on both sides.

Tags

CCSS.7.EE.B.4A

3c + 5 = 23

• c = 3

• c = 6

• c = 7

• c = 18

Tags

CCSS.7.EE.B.4A