Day 9 combining like terms
- 1. AIM: Solving Fractional Equations by Combining Like Terms Do Now 1
- 2. 3x 2x 2 - 4 3 = 5 2 3 y+2+ y = -3 3 4 2
- 3. Anticipatory Set Your grades on the first two math exams are 93 and 80. For your mean score to be 90, what must you earn on the third exam? Write and solve an equation for this situation. 93 80 ? 3
- 4. ALGEBRA The Search for Unknowns Objective: Isolate the variable to find its value RULES 1.) Keep the equation balanced 2.) Simplify each side by combining like terms and using the distributive property. 3.) Move variable to one side using inverse operations. 4.) Use inverse operations w +25 + 12 =7 8 4
- 5. 1 w +25 + 12 =7 8 5
- 6. ALGEBRA The Search for Unknowns Objective: Isolate the variable to find its value RULES 1.) Keep the equation balanced 2.) Simplify each side by combining like terms and using the distributive property. 3.) Move variable to one side using inverse operations. 4.) Use inverse operations x - 5 + 2 = -10 3 6
- 7. 2 x - 5 + 2 = -10 3 7
- 8. 3 Your first four test grades were 85, 92, 72, 95. What must your score be on the next test to guarantee a 80 for the quarter? Write and solve an equation. 8
- 9. ALGEBRA The Search for Unknowns Objective: Isolate the variable to find its value RULES 1.) Keep the equation balanced 2.) Simplify each side by combining like terms and using the distributive property. 3.) Move variable to one side using inverse operations. 4.) Use inverse operations 3k - 2 - 2 k =3 4 3 9
- 10. 4 3k - 2 - 2 k =3 4 3 10
- 11. ALGEBRA The Search for Unknowns Objective: Isolate the variable to find its value RULES 1.) Keep the equation balanced 2.) Simplify each side by combining like terms and using the distributive property. 3.) Move variable to one side using inverse operations. 4.) Use inverse operations 2 x + 1 + 2x = -5 5 3 11
- 12. 5 2 x + 1 + 2x = -5 5 3 12
- 13. ALGEBRA The Search for Unknowns Objective: Isolate the variable to find its value RULES 1.) Keep the equation balanced 2.) Simplify each side by combining like terms and using the distributive property. 3.) Move variable to one side using inverse operations. 4.) Use inverse operations 3 - 1 x + 6x = 2 4 8 6 13
- 14. 6 3 - 1 x + 6x = 2 4 8 6 14
- 15. ALGEBRA The Search for Unknowns Objective: Isolate the variable to find its value RULES 1.) Keep the equation balanced 2.) Simplify each side by combining like terms and using the distributive property. 3.) Move variable to one side using inverse operations. 4.) Use inverse operations 1 -6 + x + 1 + 4x = 4 8 6 15
- 16. 7 1 -6 + x + 1 + 4x = 4 8 6 16
- 17. Before You Leave Your first three test grades were 70, 85, 90. What must your score be on the next test to guarantee at least an 85 for the third quarter? Write and solve an inequality for this situation 17
- 18. Mr. Tjersland's Math 7 Homework: Finish Class Notes 18
- 19. AIM: Solving Fractional Equations by Combining Like Terms Your grades on the first two math exams are 93 and 80. For your mean score to be 90, what must you earn on the third exam? Write and solve an equation for this situation. 19