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5.2a: Solve Systems by Substitution

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Last updated about 2 years ago
13 Nsɛmmisa
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Today's Lesson: Solve Systems by Substitution
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Solve by Substitution, then Graph it!
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Basics Review of Systems
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Homework: Get some rest after the first day back from break!

--> Extra Credit (continued...): continue working on Mastery Goals

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1.

How was your break? What was the best part?

Objective:

I can solve a system of linear equations by substitution.

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2.

Solve the linear system of equations using substitution.

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3.

Solve the linear system of equations using substitution.

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4.

Solve the linear system of equations using substitution.

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5.

Solve the system by substitution, then graph it to confirm the solution you found.

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6.

Solve the system of equations. Show all work.

3x+7y=21

y = x - 7

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7.

y = 2x + 11

y = -3x + 1

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8.

CHALLENGE! (only do this one after you finish the rest of the Formative questions)

Solve the system by substitution, then graph it to confirm the solution you found.

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9.

What is the solution to the systems of equations shown above?

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10.

Write the equations of the lines.

If there is a solution, state what the solution or if there is "no solution"

Equation #1:

Equation #2:

Solution:

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11.

Write the equations of the lines.

If there is a solution, state what the solution is:

Equation #1:

Equation #2:

Solution:

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12.

Write the equations of the lines.

If there is a solution, state what the solution is:

Equation #1:

Equation #2:

Solution:

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13.

Here is a system of equations:

Which of the following is a solution to the system? Use substitution to solve.